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Canada FluWatch Weekly Reports 2012-2013 Season Weeks 33 & 34

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  • Canada FluWatch Weekly Reports 2012-2013 Season Weeks 33 & 34

    August 26 to September 8, 2012 (Weeks 35 & 36)

    Posted 2012-09-14For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
    <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w36_12/pdf/fw2012-36-eng.pdf">2011-2012 FluWatch: August 26 to September 8, 2012 (Weeks 35 & 36) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

    »» Help with PDF documents


    Overall Influenza Summary
    • Influenza activity in Canada remains low; however several regions have reported either sporadic or localized activity over the two-week period (in BC, MB, ON & QC)
    • In weeks 35 and 36, a total of 17 laboratory detections of influenza were reported of which 82.4% were for influenza A viruses (7 A(H3) and 7 A(un-subtyped)) and 17.6% for influenza B viruses
    • One region (in MB) reported localized activity in week 36 due to an outbreak in a long-term care facility
    • No influenza-associated hospitalizations were reported over the two-week period
    • The ILI consultation rate in weeks 35 and 36 were within the expected levels for this time of year
    <HR>NOTE: This is the first surveillance report for the 2012-2013 influenza season.Bi-weekly reports will continue until October 12, 2012. However, laboratory detections reported through the RVDSS and influenza activity level maps will be updated weekly on the FluWatch website.

    Influenza Activity (geographic spread) and Outbreaks

    In week 35, 2 regions (within BC & ON) reported sporadic activity while the rest reported no activity. In week 36, 1 region (within MB) reported localized activity, 2 regions (within ON & QC) reported sporadic activity and the rest reported no activity (see Figure 1). Note that no data was received from AB, SK, NS, PEI and YT for week 35 and no data was received from SK, PEI, NL and YT for week 36. One new outbreak was reported in week 36 in a long-term care facility (Figure 3) in MB and was due to influenza A/H3.
    Figure 1. Map of overall Influenza activity level by province and territory,
    Canada, Week 36





    Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
    Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
    Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N=56)


    † sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
    Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
    Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


    Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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    Influenza and Other Respiratory Virus Detections

    The proportion of positive influenza tests increased slightly from two weeks ago (when the percent positive was 0.2%) and was 0.9% in week 35 and 0.6% in week 36 (Figure 4 & 5). The proportion of positive detections for influenza A (0.8% in week 35 and 0.4% in week 36) was slightly higher than the proportion positive for influenza B detections (0.1% and 0.2% respectively). Over the two week period, influenza A detections were reported in BC, AB, MB, ON, QC & NL while influenza B detections were reported in AB, SK & QC.
    Cumulative to date of influenza virus detections by type/subtype is as follows: 82.4% influenza A (50.0% - A(H3) and 50.0% - unsubtyped) and 17.6% influenza B (Table 1).
    Detailed information on age and type/subtype of the positive influenza cases to date will be presented once more information becomes available (Table 2).
    The percentage positive for rhinovirus detections was similar to previous weeks (18.0% & 23.1% in weeks 35 & 36 respectively) and remains the highest compared to the other respiratory viruses. The percentage positive for parainfluenza viruses continued to decline and was 1.7% in week 36. The percentage positive for the other respiratory viruses in week 36 remained low: RSV-.7%; adenovirus-1.1%; hMPV-0.8%; and coronavirus-0.7% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
    by Provincial Laboratories, Canada, 2012-2013
    </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
    (August 26 to September 8, 2012)
    </TH><TH id=ac9 colSpan=6>Cumulative
    (August 28, 2012 to September 8, 2012)
    </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
    B
    </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
    B
    </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
    ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
    </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
    (Un S) Table 1 note*
    </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac3">2</TD><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac5">1</TD><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac7">1</TD><TD class=alignCenter headers="ar1 ar2 ac1 ac8">0</TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac11">2</TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac13">1</TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac15">1</TD><TD class=alignCenter headers="ar1 ar2 ac9 ac16">0</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac3">2</TD><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac5">1</TD><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac7">1</TD><TD class=alignCenter headers="ar1 ar3 ac1 ac8">1</TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac11">2</TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac13">1</TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac15">1</TD><TD class=alignCenter headers="ar1 ar3 ac9 ac16">1</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac3">0</TD><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac5">0</TD><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac7">0</TD><TD class=alignCenter headers="ar1 ar4 ac1 ac8">1</TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac11">0</TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac13">0</TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac15">0</TD><TD class=alignCenter headers="ar1 ar4 ac9 ac16">1</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac3">3</TD><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac5">3</TD><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignCenter headers="ar1 ar5 ac1 ac8">0</TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac11">3</TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac13">3</TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac15">0</TD><TD class=alignCenter headers="ar1 ar5 ac9 ac16">0</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac3">5</TD><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac5">2</TD><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac7">3</TD><TD class=alignCenter headers="ar1 ar6 ac1 ac8">0</TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac11">5</TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac13">2</TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac15">3</TD><TD class=alignCenter headers="ar1 ar6 ac9 ac16">0</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

    </TH><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac3">1</TD><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac7">1</TD><TD class=alignCenter headers="ar1 ar7 ac1 ac8">1</TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac11">1</TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac13">0</TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac15">1</TD><TD class=alignCenter headers="ar1 ar7 ac9 ac16">1</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

    </TH><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac3">0</TD><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignCenter headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac11">0</TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac15">0</TD><TD class=alignCenter headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

    </TH><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignCenter headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignCenter headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

    </TH><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac3">0</TD><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac5">0</TD><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignCenter headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac11">0</TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac13">0</TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignCenter headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

    </TH><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac3">1</TD><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac7">1</TD><TD class=alignCenter headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac11">1</TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac13">0</TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac15">1</TD><TD class=alignCenter headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac3">14</TD><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac5">7</TD><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac6">0</TD><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac7">7</TD><TD class=alignCenter headers="ar1 ar12 ac1 ac8">3</TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac11">14</TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac13">7</TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac14">0</TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac15">7</TD><TD class=alignCenter headers="ar1 ar12 ac9 ac16">3</TD></TR></TBODY></TABLE>
    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
    reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
    </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
    (August 26 to September 8, 2012)
    </TH><TH id=bc8 colSpan=5>Cumulative
    (Aug. 28, 2012 to September 8, 2012)
    </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported.
    These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively.
    </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br2 bc1 bc7">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br2 bc8 bc14">0</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br3 bc1 bc7">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br3 bc8 bc14">0</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br4 bc1 bc7">0</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br4 bc8 bc14">0</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br5 bc1 bc7">0</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br5 bc8 bc14">0</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br6 bc1 bc7">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br6 bc8 bc14">0</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br8 bc1 bc7">0</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br8 bc8 bc14">0</TD></TR></TBODY></TABLE>

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    Figure 4. Influenza tests reported and percentage of tests positive, Canada,
    by report week, 2012-2013


    Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
    Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
    Canada, by reporting week, 2012-2013

    Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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    Influenza strain characterizations

    The National Microbiology Laboratory (NML) has not received any influenza virus specimens for strain characterization since the start of the 2012-2013 influenza season. However, of the influenza viruses characterized in the months of July and August 2012, the majority (52%) were antigenically similar to B/Wisconsin/01/2010 (Yamagata lineage) while the rest were antigenically similar to either A/Perth/16/2009 (24%) or B/Brisbane/60/2008 (Victoria lineage) (24%). The distribution of influenza strain characterizations for the 2011-2012 influenza season are presented in Figure 6.
    Figure 6. Influenza strain characterizations, Canada, 2011-2012, N = 1, 443

    Note: The recommended components for the 2011-2012 Northern Hemisphere influenza vaccine include: A/Perth/16/2009 (H3N2), A/California/7/2009 (H1N1) and B/Brisbane/60/2008.
    Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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    Antiviral resistance

    The National Microbiology Laboratory (NML) has not received any influenza virus specimens for antiviral resistance testing since the start of the 2012-2013 influenza season. However, antiviral resistance findings from the 2011-2012 influenza season are presented in Table 3.


    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2011-2012</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignRight headers="cr2 cc2">256</TD><TD class=alignRight headers="cr2 cc3">0</TD><TD class=alignRight headers="cr2 cc5">255</TD><TD class=alignRight headers="cr2 cc6">0</TD><TD class=alignRight headers="cr2 cc8">450</TD><TD class=alignRight headers="cr2 cc9">449 (99.8%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignRight headers="cr3 cc2">256</TD><TD class=alignRight headers="cr3 cc3">0</TD><TD class=alignRight headers="cr3 cc5">256</TD><TD class=alignRight headers="cr3 cc6">0</TD><TD class=alignRight headers="cr3 cc8">356</TD><TD class=alignRight headers="cr3 cc9">356 (100%)</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignRight headers="cr4 cc2">967</TD><TD class=alignRight headers="cr4 cc3">0</TD><TD class=alignRight headers="cr4 cc5">967</TD><TD class=alignRight headers="cr4 cc6">0</TD><TD class=alignRight headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignRight headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignRight headers="cr5 cc2">1479</TD><TD class=alignRight headers="cr5 cc3">0</TD><TD class=alignRight headers="cr5 cc5">1478</TD><TD class=alignRight headers="cr5 cc6">0</TD><TD class=alignRight headers="cr5 cc8">806</TD><TD class=alignRight headers="cr5 cc9">805 (99.9%)</TD></TR></TBODY></TABLE>
    Influenza-like Illness (ILI) Consultation Rate

    The national ILI consultation rate remained similar to the rates from two week prior and was 7.6 ILI consultations per 1,000 patient visits in week 35 and 5.6 per 1,000 visits in week 36; both rates were within the expected levels for this time of year (Figure 7). The highest consultation rates by age group were observed in those <5 years of age in both weeks (12.2/1,000 in week 35 and 18.1/1,000 in week 36.
    Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)

    Note:No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
    Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
    Severe Respiratory Illness Surveillance

    Paediatric Influenza Hospitalizations and Deaths (IMPACT)
    No laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations have been reported by the Immunization Monitoring Program Active (IMPACT) network since the start of the 2012-2013 influenza season.
    Influenza Hospitalizations and Deaths (Aggregate Surveillance System)
    No laboratory-confirmed influenza-associated hospitalizations, ICU admissions or deaths have been reported since the start of the 2012-2013 influenza season.
    Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces: BC, NU, QC, NS, & NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.
    .../

    http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela

  • #2
    Re: Canada FluWatch Weekly Reports 2012-2013 Season Weeks 37-38

    Fluwatch Report: September 9 to September 22, 2012 (Weeks 37 & 38)

    Posted 2012-09-28For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
    <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w38_12/pdf/fw2012-38-eng.pdf">2012-2013 FluWatch report: September 9 to September 22, 2012 (Weeks 37 & 38) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

    »» Help with PDF documents






    Overall Influenza Summary
    • Influenza activity in Canada remains low as only a few regions reported sporadic activity over the two-week period (in ON, QC & NL)
    • In weeks 37 and 38, a total of 5 laboratory detections of influenza were reported, all of which were for influenza A viruses [1 A(H1N1)pdm09 and 4 A(un-subtyped)]
    • One influenza A-associated hospitalization (in a person >20 years of age) was reported over the two-week period
    • The ILI consultation rate increased in week 38 to 17.8 per 1,000 patient visits but remains within the expected level for this time of year
    <HR>NOTE: Bi-weekly reports will continue until October 12, 2012. However, laboratory detections reported through the RVDSS and influenza activity level maps will be updated weekly on the FluWatch website.

    Influenza Activity (geographic spread) and Outbreaks

    In week 37, 1 region (within NL) reported sporadic activity while the rest reported no activity. In week 38, 3 regions (within ON & QC) reported sporadic activity and the rest reported no activity (see Figure 1). Note that data was not received from SK and PEI for week 37 and from SK for week 38. No new outbreaks of influenza or ILI were reported in weeks 37 and 38 (Figure 3).
    Figure 1. Map of overall Influenza activity level by province and territory,
    Canada, Week 38





    Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
    Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
    Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N=58)


    † sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
    Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
    Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


    Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

    Top of Page

    Influenza and Other Respiratory Virus Detections

    The percentage of positive influenza tests was 0.3% in week 37 and 0.4% in week 38 (Figure 4 and 5). This is a slight decrease from week 36 (0.6%). Over the two week period, only influenza A detections were reported: 20% were A(H1N1)pdm09 and 80% were A unsubtyped (Table 1).
    Cumulative influenza virus detections by type/subtype to date are as follows: 88.5% influenza A (47.8% - A(H3), 0.4% - A(H1N1)pdm09 and 47.8% - unsubtyped) and 11.5% influenza B (Table 1).
    Detailed information on age and type/subtype of the positive influenza cases to date will be presented once more information becomes available (Table 2).
    The percentage positive for rhinovirus detections was similar to the previous week (26.7% & 23.7% in weeks 37 & 38 respectively) and remains the highest compared to the other respiratory viruses. The percentage positive for the other respiratory viruses in week 38 remained low: RSV-1.1%; parainfluenza-2.0; adenovirus-1.5%; hMPV-0.0%; and coronavirus-0.7% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
    by Provincial Laboratories, Canada, 2012-2013




    </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
    (September 9 to September 22, 2012)




    </TH><TH id=ac9 colSpan=6>Cumulative
    (August 26, 2012 to September 22, 2012)




    </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
    B




    </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
    B




    </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
    ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*




    </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
    (Un S) Table 1 note*




    </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">0</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">1</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">1</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">1</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">0</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">2</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">9</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">4</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">5</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">0</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>





    </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">2</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">1</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>





    </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>





    </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>





    </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>





    </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">5</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">4</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">23</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">11</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">11</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">3</TD></TR></TBODY></TABLE>
    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
    reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*




    </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
    (September 9 to September 22, 2012)




    </TH><TH id=bc8 colSpan=5>Cumulative
    (Aug. 26, 2012 to September 22, 2012)




    </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that the table will be populated once more data becomes available.</TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br2 bc1 bc7">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br2 bc8 bc14">-</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br3 bc1 bc7">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br3 bc8 bc14">-</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br4 bc1 bc7">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br4 bc8 bc14">-</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br5 bc1 bc7">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br5 bc8 bc14">-</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br6 bc1 bc7">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br6 bc8 bc14">-</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br7 bc1 bc7">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br7 bc8 bc14">-</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br8 bc1 bc7">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br8 bc8 bc14">-</TD></TR></TBODY></TABLE>

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    Figure 4. Influenza tests reported and percentage of tests positive, Canada,
    by report week, 2012-2013


    Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
    Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
    Canada, by reporting week, 2012-2013


    Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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    Influenza strain characterizations

    No data on influenza strain characterizations have been reported by the National Microbiology Laboratory (NML) since the start of the 2012-2013 influenza season. However, of the influenza viruses characterized in the months of July and August 2012, the majority (52%) were antigenically similar to B/Wisconsin/01/2010 (Yamagata lineage) while the rest were antigenically similar to either A/Perth/16/2009 (24%) or B/Brisbane/60/2008 (Victoria lineage) (24%). The distribution of influenza strain characterizations for the 2011-2012 influenza season are presented in Figure 6.
    Figure 6. Influenza strain characterizations, Canada, 2011-2012, N = 1, 443

    Note: The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: A/Perth/16/2009 (H3N2), A/California/7/2009 (H1N1) and B/Brisbane/60/2008.
    Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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    Antiviral resistance

    No data on antiviral resistance have been reported by the National Microbiology Laboratory (NML) since the start of the 2012-2013 influenza season. However, antiviral resistance findings from the 2011-2012 influenza season are presented in Table 3.


    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignRight headers="cr2 cc2">256</TD><TD class=alignRight headers="cr2 cc3">0</TD><TD class=alignRight headers="cr2 cc5">255</TD><TD class=alignRight headers="cr2 cc6">0</TD><TD class=alignRight headers="cr2 cc8">450</TD><TD class=alignRight headers="cr2 cc9">449 (99.8%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignRight headers="cr3 cc2">256</TD><TD class=alignRight headers="cr3 cc3">0</TD><TD class=alignRight headers="cr3 cc5">256</TD><TD class=alignRight headers="cr3 cc6">0</TD><TD class=alignRight headers="cr3 cc8">356</TD><TD class=alignRight headers="cr3 cc9">356 (100%)</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignRight headers="cr4 cc2">967</TD><TD class=alignRight headers="cr4 cc3">0</TD><TD class=alignRight headers="cr4 cc5">967</TD><TD class=alignRight headers="cr4 cc6">0</TD><TD class=alignRight headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignRight headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignRight headers="cr5 cc2">1479</TD><TD class=alignRight headers="cr5 cc3">0</TD><TD class=alignRight headers="cr5 cc5">1478</TD><TD class=alignRight headers="cr5 cc6">0</TD><TD class=alignRight headers="cr5 cc8">806</TD><TD class=alignRight headers="cr5 cc9">805 (99.9%)</TD></TR></TBODY></TABLE>
    Influenza-like Illness (ILI) Consultation Rate

    The national ILI consultation rate was below expected levels in week 37 (8.0 ILI consultations per 1,000 patient visits); however the ILI rate increased in week 38 to 17.8/1,000 yet remains within the expected levels for this time of year (Figure 7). The highest consultation rates in week 38 were observed in those between 5-19 years of age (55.0/1,000) and in those <5 years of age (34.1/1,000).
    Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)

    Note:No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
    Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
    Severe Respiratory Illness Surveillance

    Paediatric Influenza Hospitalizations and Deaths (IMPACT)
    No laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations have been reported by the Immunization Monitoring Program Active (IMPACT) network since the start of the 2012-2013 influenza season.
    Influenza Hospitalizations and Deaths (Aggregate Surveillance System)
    In weeks 37 and 38, one laboratory-confirmed influenza A-associated hospitalization was reported in NL. The case was >20 years of age and was admitted to ICU. This was the first influenza-associated hospitalization reported this season.
    Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces: BC, NU, QC, NS, & NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

    .../
    http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela

    Comment


    • #3
      Re: Canada FluWatch Weekly Reports 2012-2013 Season Weeks 39-40

      Fluwatch Report: September 23 to October 6, 2012 (Weeks 39 & 40)

      Posted 2012-10-12For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
      <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w40_12/pdf/fw2012-40-eng.pdf">2012-2013 FluWatch report: September 23 to October 6, 2012 (Weeks 39 & 40) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

      »» Help with PDF documents


      Overall Influenza Summary
      • Influenza activity in Canada remains low but has increased slightly since the last report as two regions (in AB & ON) reported localized influenza activity
      • In weeks 39 and 40, a total of 11 laboratory detections of influenza were reported, the majority (92%) of which were for influenza A viruses [5 A(H3), 4 A(H1N1)pdm09, 2 A(un-subtyped) and 1 B]
      • Two new influenza outbreaks were reported in week 40: 1 in a LTCF and 1 other
      • Three influenza A-associated hospitalizations (in persons ≥65 years of age) were reported over the two-week period
      • The ILI consultation rate increased slightly in week 40 to 18.6 per 1,000 patient visits but remains within the expected level for this time of year
      <HR>NOTE: Weekly FluWatchreporting will start on October 19, 2012 and will continue until May 2013.

      Influenza Activity (geographic spread) and Outbreaks

      In week 39, 2 regions (within BC & ON) reported sporadic activity while the rest reported no activity. In week 40, 2 regions (within AB & ON) reported localized activity, 1 region (within ON) reported sporadic activity and the rest reported no activity (see Figure 1). Note that data was not received from AB & SK for week 39 and from SK & PEI for week 40. Two new influenza outbreaks were reported in week 40: 1 in a long-term care facility (LCTF) and 1 other type of facility (Figure 3).
      Figure 1. Map of overall Influenza activity level by province and territory,
      Canada, Week 40





      Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
      Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
      Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


      † sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
      * Total number of influenza surveillance regions in Canada
      Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
      Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


      Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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      Influenza and Other Respiratory Virus Detections

      The percentage of positive influenza tests was 0.3% in week 39 and 0.4% in week 40 (Figure 4 and link to figure 55). and is similar to the percentage observed in week 38 (0.3%). Of the influenza viruses detected over the two week period (n=12), 92% were positive for influenza A viruses (of which 45% were A(H3), 36% were A(H1N1)pdm09 and 18% were A unsubtyped) and 8% were influenza B viruses (Table 1).
      Cumulative influenza virus detections by type/subtype to date are as follows: 89.5% influenza A (47.1% - A(H3), 14.7% - A(H1N1)pdm09 and 38.2% - unsubtyped) and 10.5% influenza B (Table 1).
      Detailed information on age and type/subtype of the positive influenza cases to date will be presented once more information becomes available (Table 2).
      The percentage positive for rhinovirus detections increased over the two week period (31.5% & 32.8% in weeks 39 & 40 respectively) and remains the highest compared to the other respiratory viruses. The percentage positive for the other respiratory viruses in week 40 remained low: RSV-1.8%; parainfluenza-3.1%; adenovirus-1.1%; hMPV-0.3%; and coronavirus-0.3% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
      <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
      by Provincial Laboratories, Canada, 2012-2013
      </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
      (September 23 to October 6, 2012)
      </TH><TH id=ac9 colSpan=6>Cumulative
      (August 26, 2012 to October 6, 2012)
      </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
      B
      </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
      B
      </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
      ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
      </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
      (Un S) Table 1 note*
      </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">4</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">0</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">5</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">4</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">8</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">5</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">1</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">1</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">1</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">0</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">5</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">14</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">7</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">7</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">1</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

      </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">2</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">1</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

      </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

      </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

      </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

      </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">11</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">5</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">4</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">34</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">16</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">5</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">13</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">4</TD></TR></TBODY></TABLE>
      <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
      reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
      </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
      (September 23 to October 6, 2012)
      </TH><TH id=bc8 colSpan=5>Cumulative
      (Aug. 26, 2012 to October 6, 2012)
      </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that the table will be populated once more data becomes available.</TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br2 bc1 bc7">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br2 bc8 bc14">-</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br3 bc1 bc7">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br3 bc8 bc14">-</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br4 bc1 bc7">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br4 bc8 bc14">-</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br5 bc1 bc7">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br5 bc8 bc14">-</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br6 bc1 bc7">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br6 bc8 bc14">-</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br7 bc1 bc7">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br7 bc8 bc14">-</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br8 bc1 bc7">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br8 bc8 bc14">-</TD></TR></TBODY></TABLE>

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      Figure 4. Influenza tests reported and percentage of tests positive, Canada,
      by report week, 2012-2013


      Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
      Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
      Canada, by reporting week, 2012-2013


      Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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      Influenza strain characterizations

      Since the start of the 2012-2013 influenza season, the National Microbiology Laboratory (NML) has antigenically characterized 1 influenza B virus; the virus was antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage)(Figure 6).
      Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 1

      Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
      Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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      Antiviral resistance

      Since the beginning of the season, NML has tested 1 influenza virus for resistance to oseltamivir and 1 for zanamivir and it was found that the virus tested was sensitive to oseltamivir and zanamivir. A total of 3 influenza A(H3N2) viruses were tested for amantadine resistance and all 3 viruses tested were resistant (Table 3).


      <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignRight headers="cr2 cc2">0</TD><TD class=alignRight headers="cr2 cc3">0</TD><TD class=alignRight headers="cr2 cc5">0</TD><TD class=alignRight headers="cr2 cc6">0</TD><TD class=alignRight headers="cr2 cc8">3</TD><TD class=alignRight headers="cr2 cc9">3 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignRight headers="cr3 cc2">0</TD><TD class=alignRight headers="cr3 cc3">0</TD><TD class=alignRight headers="cr3 cc5">0</TD><TD class=alignRight headers="cr3 cc6">0</TD><TD class=alignRight headers="cr3 cc8">0</TD><TD class=alignRight headers="cr3 cc9">0</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignRight headers="cr4 cc2">1</TD><TD class=alignRight headers="cr4 cc3">0</TD><TD class=alignRight headers="cr4 cc5">1</TD><TD class=alignRight headers="cr4 cc6">0</TD><TD class=alignRight headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignRight headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignRight headers="cr5 cc2">1</TD><TD class=alignRight headers="cr5 cc3">0</TD><TD class=alignRight headers="cr5 cc5">1</TD><TD class=alignRight headers="cr5 cc6">0</TD><TD class=alignRight headers="cr5 cc8">3</TD><TD class=alignRight headers="cr5 cc9">3 (100%)</TD></TR></TBODY></TABLE>
      Influenza-like Illness (ILI) Consultation Rate

      The national influenza-like-illness (ILI) consultation rate for week 39 was 11.8 ILI consultations per 1,000 patient visits and in week 40 was 18.6/1,000; both were within expected levels for this time of year (Figure 7). The highest consultation rates in week 40 were observed in those <5 years of age (49.3/1,000) and those ≥65 years of age (35.5/1,000).
      Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



      Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
      Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
      Severe Respiratory Illness Surveillance

      Paediatric Influenza Hospitalizations and Deaths (IMPACT)
      No laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations have been reported by the Immunization Monitoring Program Active (IMPACT) network since the start of the 2012-2013 influenza season.

      Influenza Hospitalizations and Deaths (Aggregate Surveillance System)

      In weeks 39 and 40, 3 laboratory-confirmed influenza A-associated hospitalizations were reported (from AB & ON). All cases were ≥65 years of age.

      To date this season, 4 influenza A-associated hospitalizations have been reported from 3 provinces (AB, ON & NL); all were ≥ 65 years of age. Of the influenza A hospitalizations where subtype was available (2), all were due to influenza A(H1N1)pdm09. There has been 1 hospitalisation for which admission to ICU was required (from NL). To date this season, no influenza-associated deaths have been reported.

      Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces: BC, NU, QC, NS, & NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

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      International Influenza Update

      WHO: Influenza transmission in all reporting countries in the temperate regions of the northern hemisphere is still minimal and is at inter-seasonal levels. In the tropical areas most countries are reporting low or decreasing trends of influenza virus detections. The exceptions are Costa Rica in the Americas and India; Nepal, Lao PDR and Thailand in Asia. In Sub-Saharan Africa, Cameroon has reported an increase in influenza virus detections. It appears that the influenza season in the temperate countries of the southern hemisphere has come to an end.
      World Health Organization influenza update


      United States: The proportion of tests positive for influenza viruses increased slightly in week 39 (3.6%) compared to previous weeks (3.1% in week 38 and 2.7% in week 37). Of the positive influenza detections reported during week 39, 55% were positive for influenza B viruses. Of the 20 influenza A viruses for which subtype information was available, 85% were A(H3) and 15% were A(H1N1)pdm09. All other indicators of influenza activity remained low.
      Centers for Disease Control and Prevention seasonal influenza report

      Europe: In week 40, influenza activity in the European Region remained low. None of the 282 samples collected from sentinel sources were positive for influenza virus; 15 samples from non-sentinel sources were positive for influenza viruses (4 influenza A(H1N1)pdm09, 1 influenza A(H3N2), 6 un-subtyped and 4 influenza B). ILI and ARI consultation rates are at low levels, which is usual for this time of year.
      EuroFlu weekly electronic bulletin
      Human Avian and Swine Influenza Updates

      H5N1
      No cases of human avian influenza A/H5N1 infection have been reported by the WHO since August 10, 2012. A summary of the latest WHO Human-Animal Interface Risk Assessment (as of October 1, 2012) is available on the WHO webpage.
      WHO Avian influenza situation updates

      H1N1 variant (H1N1v)
      In week 38, a case of human infection with influenza A(H1N1) variant (H1N1v) virus was reported in Ontario, Canada. The case was an adult male with underlying risk factors who developed symptoms at the end of August and was hospitalized with pneumonia in September. He had occupational exposure to swine. No additional cases have been reported. This is the first time that an H1N1v virus has been detected in Canada with the matrix (M) gene from the influenza A(H1N1)pdm09 virus. Based on its similarity to the H1N1 virus that has circulated in humans since 2009, it is expected that the 2012-2013 seasonal influenza vaccine is likely to protect against the H1N1v influenza virus, although the seasonal influenza vaccine may not protect people against some other variant influenza viruses that are very different from currently circulating human influenza viruses.

      .../
      http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
      "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
      -Nelson Mandela

      Comment


      • #4
        Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 41

        Fluwatch Report: October 7 to October 13, 2012 (Week 41)

        Posted 2012-10-19For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
        <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w41_12/pdf/fw2012-41-eng.pdf">2012-2013 FluWatch report: October 7 to October 13, 2012 (Week 41) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

        »» Help with PDF documents


        Overall Influenza Summary
        • Influenza activity in Canada remains low but has increased slightly from last week as more regions have reported localized and sporadic influenza activity
        • In week 41, a total of 17 laboratory detections of influenza were reported, the majority (94%) of which were for influenza A viruses [8 A(H3), 1 A(H1N1)pdm09, 7 A(un-subtyped) and 1 B]
        • Four new influenza outbreaks were reported in week 41: 3 in LTCFs and 1 other
        • One influenza A-associated hospitalization (in a person ≥65 years of age) was reported in week 41
        • The ILI consultation rate declined in week 41 to 10.2 per 1,000 patient visits is below the expected level for this time of year
        Influenza Activity (geographic spread) and Outbreaks

        In week 41, 3 regions (within AB & ON) reported localized activity, 6 regions (within BC, AB, ON & QC) reported sporadic activity and the rest reported no activity (see Figure 1). Note that data was not received from SK for week 41. Four new influenza outbreaks were reported in week 41: 3 in long-term care facilities (LCTF) and 1 other type of facility (Figure 3).
        Figure 1. Map of overall Influenza activity level by province and territory,
        Canada, Week 41





        Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
        Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
        Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


        † sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
        * Total number of influenza surveillance regions in Canada
        Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
        Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


        Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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        Influenza and Other Respiratory Virus Detections

        The percentage of positive influenza tests increased slightly from the previous week from 0.4% in week 40 to 0.9% in week 41 (Figure 4 and link to figure 55). Of the influenza viruses detected this week (n=17), 94% were positive for influenza A viruses (of which 50% were A(H3), 6.2% were A(H1N1)pdm09 and 43.8% were A unsubtyped) and 6% were influenza B viruses (Table 1).

        Cumulative influenza virus detections by type/subtype to date are as follows: 90.7% influenza A (51.0% - A(H3), 12.2% - A(H1N1)pdm09 and 36.7% - unsubtyped) and 9.3% influenza B (Table 1).

        To date this season, individuals aged 65 years and older make up the largest proportion of all influenza cases. Additional information on age and type/subtype of the positive influenza cases will be presented in Table 2 once more information becomes available.

        The percentage positive for rhinovirus detections declined from the previous week (20.6% in week 41) but remains the highest compared to the other respiratory viruses. The percentage positive for the other respiratory viruses in week 41 remained low: RSV-2.0%; parainfluenza-2.4%; adenovirus-1.2%; hMPV-0.2%; and coronavirus-0.7% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
        <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
        by Provincial Laboratories, Canada, 2012-2013
        </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
        (October 7 to October 13, 2012)
        </TH><TH id=ac9 colSpan=6>Cumulative
        (August 26, 2012 to October 13, 2012)
        </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
        B
        </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
        B
        </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
        ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
        </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
        (Un S) Table 1 note*
        </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">5</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">2</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">0</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">6</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">2</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">3</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">14</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">4</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">6</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">4</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">1</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">1</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">1</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">0</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">7</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">6</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">21</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">14</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">7</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">1</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

        </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">2</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">4</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">4</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">2</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

        </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

        </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

        </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

        </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">16</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">8</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">7</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">49</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">25</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">6</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">18</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">5</TD></TR></TBODY></TABLE>
        <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
        reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
        </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
        (October 7 to October 13, 2012)
        </TH><TH id=bc8 colSpan=5>Cumulative
        (Aug. 26, 2012 to October 13, 2012)
        </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that the table will be populated once more data becomes available.</TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br2 bc1 bc7">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br2 bc8 bc14">-</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br3 bc1 bc7">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br3 bc8 bc14">-</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br4 bc1 bc7">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br4 bc8 bc14">-</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br5 bc1 bc7">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br5 bc8 bc14">-</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br6 bc1 bc7">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br6 bc8 bc14">-</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br7 bc1 bc7">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br7 bc8 bc14">-</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">-</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">-</TD><TD class=alignRight headers="br1 br8 bc1 bc7">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">-</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">-</TD><TD class=alignRight headers="br1 br8 bc8 bc14">-</TD></TR></TBODY></TABLE>

        Top of Page

        Figure 4. Influenza tests reported and percentage of tests positive, Canada,
        by report week, 2012-2013


        Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
        Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
        Canada, by reporting week, 2012-2013


        Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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        Influenza strain characterizations

        Since the start of the 2012-2013 influenza season, the National Microbiology Laboratory (NML) has antigenically characterized 1 influenza B virus; the virus was antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) (Figure 6).
        Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 1

        Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
        Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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        Antiviral resistance

        Since the beginning of the season, NML has tested 1 influenza B virus for resistance to oseltamivir and 1 for zanamivir and it was found that the virus tested was sensitive to oseltamivir and zanamivir. A total of 3 influenza A(H3N2) viruses were tested for amantadine resistance and all 3 viruses tested were resistant (Table 3).


        <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignRight headers="cr2 cc2">0</TD><TD class=alignRight headers="cr2 cc3">0</TD><TD class=alignRight headers="cr2 cc5">0</TD><TD class=alignRight headers="cr2 cc6">0</TD><TD class=alignRight headers="cr2 cc8">3</TD><TD class=alignRight headers="cr2 cc9">3 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignRight headers="cr3 cc2">0</TD><TD class=alignRight headers="cr3 cc3">0</TD><TD class=alignRight headers="cr3 cc5">0</TD><TD class=alignRight headers="cr3 cc6">0</TD><TD class=alignRight headers="cr3 cc8">0</TD><TD class=alignRight headers="cr3 cc9">0</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignRight headers="cr4 cc2">1</TD><TD class=alignRight headers="cr4 cc3">0</TD><TD class=alignRight headers="cr4 cc5">1</TD><TD class=alignRight headers="cr4 cc6">0</TD><TD class=alignRight headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignRight headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignRight headers="cr5 cc2">1</TD><TD class=alignRight headers="cr5 cc3">0</TD><TD class=alignRight headers="cr5 cc5">1</TD><TD class=alignRight headers="cr5 cc6">0</TD><TD class=alignRight headers="cr5 cc8">3</TD><TD class=alignRight headers="cr5 cc9">3 (100%)</TD></TR></TBODY></TABLE>
        Influenza-like Illness (ILI) Consultation Rate

        The national influenza-like-illness (ILI) consultation rate in week 41 declined slightly from the previous week to 10.2 ILI consultations per 1,000 patient visits. However this rate is below the expected levels for this time of year (Figure 7). The highest consultation rates were observed in those between 5 and 19 years of age (16.6/1,000) and those less than 5 years of age (14.2/1,000).
        Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



        Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
        Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)

        Severe Respiratory Illness Surveillance

        Paediatric Influenza Hospitalizations and Deaths (IMPACT)

        No laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations have been reported by the Immunization Monitoring Program Active (IMPACT) network since the start of the 2012-2013 influenza season.

        Influenza Hospitalizations and Deaths (Aggregate Surveillance System)

        In week 41, one laboratory-confirmed influenza A-associated hospitalization was reported (from ON). The case was ≥65 years of age.
        To date this season, 5 influenza A-associated hospitalizations have been reported from 3 provinces (AB, ON & NL); all were ≥ 65 years of age. Of the influenza A hospitalizations where subtype was available (4), 50% were due to influenza A(H1N1)pdm09 and 50% were due to A(H3N2). There has been one hospitalisation for which admission to ICU was required (from NL). To date this season, no influenza-associated deaths have been reported.
        Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces: BC, NU, QC, NS, & NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

        http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
        "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
        -Nelson Mandela

        Comment


        • #5
          Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 42

          Fluwatch Report: October 14 to October 20, 2012 (Week 42)

          Posted 2012-10-26For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
          <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w42_12/pdf/fw2012-42-eng.pdf">2012-2013 FluWatch report: October 14 to October 20, 2012 (Week 42) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

          »» Help with PDF documents

          Overall Influenza Summary
          • Influenza activity in Canada remains low and was similar to the previous week
          • In week 42, a total of 17 laboratory detections of influenza were reported, all of which were for influenza A viruses [8 A(H3), 1 A(H1N1)pdm09, 8 A(un-subtyped)]
          • Two influenza outbreaks in long-term care facilities were reported in week 42
          • One influenza A-associated hospitalization (in a person ≥65 years of age) was reported in week 42
          • The ILI consultation rate increased in week 42 to 18.0 per 1,000 patient visits but is within the expected level for this time of year
          Influenza Activity (geographic spread) and Outbreaks

          In week 42, 4 regions (within AB & ON) reported localized activity, 4 regions (within AB, ON, QC & NL) reported sporadic activity and the rest reported no activity (see Figure 1). Note that data was not received from SK for week 42. Two new influenza outbreaks were reported in week 42 and both were in long-term care facilities (Figure 3).
          Figure 1. Map of overall Influenza activity level by province and territory,
          Canada, Week 42






          Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
          Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
          Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


          †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
          * Total number of influenza surveillance regions in Canada
          Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
          Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


          Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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          Influenza and Other Respiratory Virus Detections

          The percentage of positive influenza tests declined slightly from the previous week from 1.2% in week 41 to 0.9% in week 42 (Figure 4 and link to figure 55). All of the influenza viruses detected this week (n=17) were positive for influenza A viruses (of which 47.1% were A(H3), 5.9% were A(H1N1)pdm09 and 47.1% were A unsubtyped) (Table 1).
          Cumulative influenza virus detections by type/subtype to date are as follows: 93.3% influenza A (54.3% - A(H3), 10.0% - A(H1N1)pdm09 and 35.7% - unsubtyped) and 6.7% influenza B (Table 1).
          Detailed information on age and type/subtype were received on 58 cases to date this season (Table 2). The proportions of cases by age group were as follows: 12.1% were < 5 years; 6.9% were between 5-19 years; 19.0% were between 20-44 years; 13.8% were between 45-64 years of age; 48.3% were ≥ 65 years.
          The percentage positive for rhinovirus detections increased slightly from the previous week (23.4% in week 42) and remains the highest compared to the other respiratory viruses. The percentage positive for the other respiratory viruses in week 42 remained low: RSV-1.9%; parainfluenza-2.9%; adenovirus-1.0%; hMPV-0.2%; and coronavirus-1.2% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
          <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
          by Provincial Laboratories, Canada, 2012-2013
          </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
          (October 14 to October 20, 2012)</TH><TH id=ac9 colSpan=6>Cumulative
          (August 26, 2012 to October 20, 2012)</TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
          B</TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
          B</TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
          ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*</TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
          (Un S) Table 1 note*</TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">6</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">4</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">2</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">0</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">6</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">25</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">12</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">7</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">6</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">1</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">2</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">1</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">0</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">7</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">4</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">3</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">28</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">18</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">10</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">1</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>
          </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">4</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">4</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">2</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>
          </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>
          </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>
          </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>
          </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">17</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">8</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">8</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">70</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">38</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">7</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">25</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">5</TD></TR></TBODY></TABLE>
          <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
          reported through case-based laboratory reporting, Canada, 2012-2013
          Table 2 note*</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
          (October 14 to October 20, 2012)</TH><TH id=bc8 colSpan=5>Cumulative
          (August 26, 2012 to October 20, 2012)</TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br2 bc1 bc7">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">6</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">1</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">5</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br2 bc8 bc14">1</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">4</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">2</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">2</TD><TD class=alignRight headers="br1 br3 bc1 bc7">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">4</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">2</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">2</TD><TD class=alignRight headers="br1 br3 bc8 bc14">0</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br4 bc1 bc7">0</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">11</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">3</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">4</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">4</TD><TD class=alignRight headers="br1 br4 bc8 bc14">0</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br5 bc1 bc7">0</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">6</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">1</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">2</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">3</TD><TD class=alignRight headers="br1 br5 bc8 bc14">2</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">5</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">4</TD><TD class=alignRight headers="br1 br6 bc1 bc7">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">27</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">2</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">17</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">8</TD><TD class=alignRight headers="br1 br6 bc8 bc14">1</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">11</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">4</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">6</TD><TD class=alignRight headers="br1 br8 bc1 bc7">0</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">54</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">7</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">30</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">17</TD><TD class=alignRight headers="br1 br8 bc8 bc14">4</TD></TR></TBODY></TABLE>

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          Figure 4. Influenza tests reported and percentage of tests positive, Canada,
          by report week, 2012-2013



          Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
          Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
          Canada, by reporting week, 2012-2013



          Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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          Influenza strain characterizations

          Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 3 influenza viruses [1 A(H3N2) and 2 B]. The influenza A(H3N2) virus (from BC) was antigenically similar to the vaccine strain A/Victoria/361/2011. Both of the influenza B viruses (from ON & QC) were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) (Figure 6).
          Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 3

          Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
          Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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          Antiviral resistance

          Since the beginning of the season, NML has tested 3 influenza viruses [1 A(H3N2) and 2 B] for resistance to oseltamivir and zanamivir and it was found that all were sensitive to oseltamivir and zanamivir. A total of 6 influenza A(H3N2) viruses were tested for amantadine resistance and all were resistant (Table 3).


          <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignRight headers="cr2 cc2">1</TD><TD class=alignRight headers="cr2 cc3">0</TD><TD class=alignRight headers="cr2 cc5">1</TD><TD class=alignRight headers="cr2 cc6">0</TD><TD class=alignRight headers="cr2 cc8">6</TD><TD class=alignRight headers="cr2 cc9">6 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignRight headers="cr3 cc2">0</TD><TD class=alignRight headers="cr3 cc3">0</TD><TD class=alignRight headers="cr3 cc5">0</TD><TD class=alignRight headers="cr3 cc6">0</TD><TD class=alignRight headers="cr3 cc8">0</TD><TD class=alignRight headers="cr3 cc9">0</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignRight headers="cr4 cc2">2</TD><TD class=alignRight headers="cr4 cc3">0</TD><TD class=alignRight headers="cr4 cc5">2</TD><TD class=alignRight headers="cr4 cc6">0</TD><TD class=alignRight headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignRight headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignRight headers="cr5 cc2">3</TD><TD class=alignRight headers="cr5 cc3">0</TD><TD class=alignRight headers="cr5 cc5">3</TD><TD class=alignRight headers="cr5 cc6">0</TD><TD class=alignRight headers="cr5 cc8">6</TD><TD class=alignRight headers="cr5 cc9">6 (100%)</TD></TR></TBODY></TABLE>
          Influenza-like Illness (ILI) Consultation Rate

          The national influenza-like-illness (ILI) consultation rate in week 42 increased from the previous week to 18.0 ILI consultations per 1,000 patient visits and is within the expected levels for this time of year (Figure 7). The highest consultation rates were observed in those less than 5 years of age (30.5/1,000) and those ≥65 years of age (20.2/1,000).
          Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



          Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
          Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
          Severe Respiratory Illness Surveillance

          Paediatric Influenza Hospitalizations and Deaths (IMPACT)

          No laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations have been reported by the Immunization Monitoring Program Active (IMPACT) network since the start of the 2012-2013 influenza season.

          Influenza Hospitalizations and Deaths (Aggregate Surveillance System)

          In week 42, one laboratory-confirmed influenza A-associated hospitalization was reported (from NL). The case was ≥65 years of age.

          To date this season, 6 influenza A-associated hospitalizations have been reported from 3 provinces (AB, ON & NL); all were ≥ 65 years of age. Of the influenza A hospitalizations where subtype was available (4), 50% were due to influenza A(H1N1)pdm09 and 50% were due to A(H3N2). There has been one hospitalisation for which admission to ICU was required (from NL). To date this season, no influenza-associated deaths have been reported.

          Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, & NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

          .../
          http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
          "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
          -Nelson Mandela

          Comment


          • #6
            Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 43

            Fluwatch Report: October 21 to October 27, 2012 (Week 43)

            Posted 2012-11-02For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
            <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w43_12/pdf/fw2012-43-eng.pdf">2012-2013 FluWatch report: October 21 to October 27, 2012 (Week 43) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

            »» Help with PDF documents


            Overall Influenza Summary
            • Influenza activity in Canada remains low and was similar to the previous week
            • In week 43, a total of 25 laboratory detections of influenza were reported, 88% of which were for influenza A viruses (68.2% A(H3) and 31.8% A(un-subtyped)).
            • Two influenza outbreaks in long-term care facilities were reported in week 43
            • Five influenza A-associated hospitalizations (in persons ≥65 years of age) were reported in week 43
            • The ILI consultation rate increased in week 43 to 20.0 per 1,000 patient visits but is within the expected level for this time of year
            Influenza Activity (geographic spread) and Outbreaks

            In week 43, 4 regions (within AB(1) & ON(3)) reported localized activity, 5 regions (within BC, AB(2), ON & QC) reported sporadic activity and the rest reported no activity (see Figure 1). Two new influenza outbreaks were reported in week 43 (in AB & ON) and both were in long-term care facilities (Figure 3).
            Figure 1. Map of overall Influenza activity level by province and territory,
            Canada, Week 43





            Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
            Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
            Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


            †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
            * Total number of influenza surveillance regions in Canada
            Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
            Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


            Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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            Influenza and Other Respiratory Virus Detections

            The percentage of positive influenza tests increased slightly from the previous week from 0.9% in week 42 to 1.3% in week 43 (Figure 4 and link to figure 55). Among the influenza viruses detected this week (n=25), 88% were positive for influenza A viruses (of which 68.2% were A(H3) and 31.8% were A unsubtyped) and 12% for influenza B viruses (Table 1).
            Cumulative influenza virus detections by type/subtype to date are as follows: 92.1% influenza A (58.1% - A(H3), 7.5% - A(H1N1)pdm09 and 34.4% - unsubtyped) and 7.9% influenza B (Table 1).
            Detailed information on age and type/subtype were received on 79 cases to date this season (Table 2). The proportions of cases by age group were as follows: 11.4% were < 5 years; 6.3% were between 5-19 years; 15.2% were between 20-44 years; 16.5% were between 45-64 years of age; 50.6% were ≥ 65 years.
            The percentage positive for rhinovirus detections decreased from the previous week, from 24.9% in week 42 to 19.4% week 43, and remains the highest compared to the other respiratory viruses. The percentage positive for the other respiratory viruses in week 43 remained low: RSV 2.0%; parainfluenza 3.0%; adenovirus 2.0%; hMPV 0.6%; and coronavirus 0.7% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
            <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
            by Provincial Laboratories, Canada, 2012-2013
            </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
            (October 21 to October 27, 2012)
            </TH><TH id=ac9 colSpan=6>Cumulative
            (August 26, 2012 to October 27, 2012)
            </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
            B
            </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
            B
            </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
            ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
            </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
            (Un S) Table 1 note*
            </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">6</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">4</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">2</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">1</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">7</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">6</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">32</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">19</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">7</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">6</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">2</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">2</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">1</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">0</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">14</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">9</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">5</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">42</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">27</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">15</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">2</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

            </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">6</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">6</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">2</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

            </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

            </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

            </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

            </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">22</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">15</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">7</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">3</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">93</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">54</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">7</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">32</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">8</TD></TR></TBODY></TABLE>
            <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
            reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
            </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
            (October 21 to October 27, 2012)
            </TH><TH id=bc8 colSpan=5>Cumulative
            (August 26, 2012 to October 27, 2012)
            </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br2 bc1 bc7">1</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">7</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">1</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">6</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br2 bc8 bc14">2</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br3 bc1 bc7">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">5</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">4</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">1</TD><TD class=alignRight headers="br1 br3 bc8 bc14">0</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br4 bc1 bc7">1</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">11</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">3</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">4</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">4</TD><TD class=alignRight headers="br1 br4 bc8 bc14">1</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">3</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">2</TD><TD class=alignRight headers="br1 br5 bc1 bc7">0</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">10</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">1</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">4</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">5</TD><TD class=alignRight headers="br1 br5 bc8 bc14">3</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">10</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">4</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">6</TD><TD class=alignRight headers="br1 br6 bc1 bc7">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">39</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">2</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">22</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">15</TD><TD class=alignRight headers="br1 br6 bc8 bc14">1</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">15</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">7</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">8</TD><TD class=alignRight headers="br1 br8 bc1 bc7">2</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">72</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">7</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">40</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">25</TD><TD class=alignRight headers="br1 br8 bc8 bc14">7</TD></TR></TBODY></TABLE>

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            Figure 4. Influenza tests reported and percentage of tests positive, Canada,
            by report week, 2012-2013


            Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
            Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
            Canada, by reporting week, 2012-2013


            Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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            Influenza strain characterizations

            Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 3 influenza viruses [1 A(H3N2) and 2 B]. The influenza A(H3N2) virus (from BC) was antigenically similar to the vaccine strain A/Victoria/361/2011. Both of the influenza B viruses (from ON & QC) were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) (Figure 6).
            Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 3

            Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
            Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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            Antiviral resistance

            Since the beginning of the season, NML has tested 3 influenza viruses [1 A(H3N2) and 2 B] for resistance to oseltamivir and zanamivir and it was found that all were sensitive to oseltamivir and zanamivir. A total of 6 influenza A(H3N2) viruses were tested for amantadine resistance and all were resistant (Table 3).


            <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignRight headers="cr2 cc2">1</TD><TD class=alignRight headers="cr2 cc3">0</TD><TD class=alignRight headers="cr2 cc5">1</TD><TD class=alignRight headers="cr2 cc6">0</TD><TD class=alignRight headers="cr2 cc8">6</TD><TD class=alignRight headers="cr2 cc9">6 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignRight headers="cr3 cc2">0</TD><TD class=alignRight headers="cr3 cc3">0</TD><TD class=alignRight headers="cr3 cc5">0</TD><TD class=alignRight headers="cr3 cc6">0</TD><TD class=alignRight headers="cr3 cc8">0</TD><TD class=alignRight headers="cr3 cc9">0</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignRight headers="cr4 cc2">2</TD><TD class=alignRight headers="cr4 cc3">0</TD><TD class=alignRight headers="cr4 cc5">2</TD><TD class=alignRight headers="cr4 cc6">0</TD><TD class=alignRight headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignRight headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignRight headers="cr5 cc2">3</TD><TD class=alignRight headers="cr5 cc3">0</TD><TD class=alignRight headers="cr5 cc5">3</TD><TD class=alignRight headers="cr5 cc6">0</TD><TD class=alignRight headers="cr5 cc8">6</TD><TD class=alignRight headers="cr5 cc9">6 (100%)</TD></TR></TBODY></TABLE>
            Influenza-like Illness (ILI) Consultation Rate

            The national influenza-like-illness (ILI) consultation rate in week 43 increased from the previous week from 17.8 to 20.0 ILI consultations per 1,000 patient visits and is within the expected levels for this time of year (Figure 7). The highest consultation rates were observed in those less than 5 years of age (34.8/1,000) and those ≥65 years of age (23.6/1,000).
            Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



            Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
            Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
            Severe Respiratory Illness Surveillance

            Paediatric Influenza Hospitalizations and Deaths (IMPACT)
            No laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations have been reported by the Immunization Monitoring Program Active (IMPACT) network since the start of the 2012-2013 influenza season.

            Influenza Hospitalizations and Deaths (Aggregate Surveillance System)
            In week 43, five laboratory-confirmed influenza A-associated hospitalizations were reported [from ON(4) & AB(1)]. The cases were all ≥65 years of age.

            To date this season, 11 influenza A-associated hospitalizations have been reported from 3 provinces (AB, ON & NL); all were ≥ 65 years of age. Of the influenza A hospitalizations where subtype was available, 22.2% (2) were due to influenza A(H1N1)pdm09 and 77.8% (7) were due to A(H3N2).

            There has been one hospitalisation for which admission to ICU was required (from NL). To date this season, no influenza-associated deaths have been reported.

            Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, & NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

            .../
            http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
            "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
            -Nelson Mandela

            Comment


            • #7
              Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 44

              Fluwatch Report: October 28 to November 3, 2012 (Week 44)

              Posted 2012-11-09For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
              <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w44_12/pdf/fw2012-44-eng.pdf">2012-2013 FluWatch report: October 28 to November 3, 2012 (Week 44) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

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              Overall Influenza Summary
              • Influenza activity in Canada increased slightly compared to the previous week; however overall activity still remains fairly low, with most regions of the country reporting no activity.
              • In week 44, a total of 64 laboratory detections of influenza were reported; of which 91% were for influenza A viruses [71% A(H3) and 29% A(un-subtyped)].
              • Six influenza outbreaks in long-term care facilities were reported in week 44.
              • Eleven influenza A-associated hospitalizations were reported in week 44: 8 in adults >20 years of age, and 2 in children.
              • The ILI consultation rate increased in week 44 to 21.9 per 1,000 patient visits but is within the expected level for this time of year.
              Influenza Activity (geographic spread) and Outbreaks

              In week 44, 5 regions [within AB(1), SK(1), ON(2) and QC(1)] reported localized activity, 9 regions [within BC(1), AB(2), MB(1), ON(1), QC(3) and PE(1)] reported sporadic activity and the rest reported no activity (Figures 1 and 2). Six new influenza outbreaks were reported in week 44 [in AB(2), SK(1), ON(2) and QC(1)] and all were in long-term care facilities (Figure 3).
              Figure 1. Map of overall Influenza activity level by province and territory,
              Canada, Week 44





              Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
              Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
              Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


              †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
              * Total number of influenza surveillance regions in Canada
              Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
              Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


              Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

              Top of Page

              Influenza and Other Respiratory Virus Detections

              The percentage of positive influenza tests increased from the previous week, from 1.3% in week 43 to 2.8% in week 44 (Figures 4 and 5). Among the influenza viruses detected this week (n=64), 90.6% were positive for influenza A viruses [of which 70.7% were A(H3) and 29.3% were A unsubtyped] and 9.4% for influenza B viruses (Table 1).
              Cumulative influenza virus detections by type/subtype to date are as follows: 91.6% influenza A [64.5% A(H3), 4.6% A(H1N1)pdm09 and 30.9% A(unsubtyped)] and 8.4% influenza B (Table 1).
              Detailed information on age and type/subtype was received for 104 cases to date this season (Table 2).The proportions of cases by age group were as follows: 8.7% were < 5 years; 8.7% were between 5-19 years; 13.5% were between 20-44 years; 15.4% were between 45-64 years of age; 53.9% were ≥ 65 years.
              The percentage positive for rhinovirus detections decreased from the previous week, from 20.6% in week 43 to 15.5% week 44; but remains the highest compared to the other respiratory viruses. The percentage positive for the other respiratory viruses in week 44 remained low, although RSV and parainfluenza increased slightly compared to week 43: RSV 2.4%; parainfluenza 3.3%; adenovirus 1.1%; hMPV 0.2%; and coronavirus 1.3% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
              <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
              by Provincial Laboratories, Canada, 2012-2013
              </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
              (October 28 to November 3, 2012)
              </TH><TH id=ac9 colSpan=6>Cumulative
              (August 26, 2012 to November 3, 2012)
              </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
              B
              </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
              B
              </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
              ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
              </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
              (Un S) Table 1 note*
              </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac3">1 </TD><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac5">0 </TD><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar2 ac1 ac2 ac7">1 </TD><TD class=alignCenter headers="ar1 ar2 ac1 ac8">2 </TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac11">7 </TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac13">4 </TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar2 ac9 ac10 ac15">3 </TD><TD class=alignCenter headers="ar1 ar2 ac9 ac16">3 </TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac3">28 </TD><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac5">24 </TD><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar3 ac1 ac2 ac7">4 </TD><TD class=alignCenter headers="ar1 ar3 ac1 ac8">0 </TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac11">60 </TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac13">44 </TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac14">7 </TD><TD class=alignCenter headers="ar1 ar3 ac9 ac10 ac15">9 </TD><TD class=alignCenter headers="ar1 ar3 ac9 ac16">2 </TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac3">1 </TD><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac5">0 </TD><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar4 ac1 ac2 ac7">1 </TD><TD class=alignCenter headers="ar1 ar4 ac1 ac8">0 </TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac11">3 </TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac13">0 </TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar4 ac9 ac10 ac15">3 </TD><TD class=alignCenter headers="ar1 ar4 ac9 ac16">1 </TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac3">1 </TD><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac5">0 </TD><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar5 ac1 ac2 ac7">1 </TD><TD class=alignCenter headers="ar1 ar5 ac1 ac8">0 </TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac11">4 </TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac13">3 </TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar5 ac9 ac10 ac15">1 </TD><TD class=alignCenter headers="ar1 ar5 ac9 ac16">0 </TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac3">17 </TD><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac5">12 </TD><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar6 ac1 ac2 ac7">5 </TD><TD class=alignCenter headers="ar1 ar6 ac1 ac8">1 </TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac11">59 </TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac13">39 </TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar6 ac9 ac10 ac15">20 </TD><TD class=alignCenter headers="ar1 ar6 ac9 ac16">3 </TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

              </TH><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac3">9 </TD><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac5">4 </TD><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar7 ac1 ac2 ac7">5 </TD><TD class=alignCenter headers="ar1 ar7 ac1 ac8">3 </TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac11">16 </TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac13">5 </TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar7 ac9 ac10 ac15">11 </TD><TD class=alignCenter headers="ar1 ar7 ac9 ac16">5 </TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

              </TH><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac3">0 </TD><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac5">0 </TD><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar8 ac1 ac2 ac7">0 </TD><TD class=alignCenter headers="ar1 ar8 ac1 ac8">0 </TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac11">0 </TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac13">0 </TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar8 ac9 ac10 ac15">0 </TD><TD class=alignCenter headers="ar1 ar8 ac9 ac16">0 </TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

              </TH><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac3">0 </TD><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac5">0 </TD><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar9 ac1 ac2 ac7">0 </TD><TD class=alignCenter headers="ar1 ar9 ac1 ac8">0 </TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac11">0 </TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac13">0 </TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar9 ac9 ac10 ac15">0 </TD><TD class=alignCenter headers="ar1 ar9 ac9 ac16">0 </TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

              </TH><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac3">1 </TD><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac5">1 </TD><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar10 ac1 ac2 ac7">0 </TD><TD class=alignCenter headers="ar1 ar10 ac1 ac8">0 </TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac11">1 </TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac13">1 </TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar10 ac9 ac10 ac15">0 </TD><TD class=alignCenter headers="ar1 ar10 ac9 ac16">0 </TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

              </TH><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac3">0 </TD><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac5">0 </TD><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar11 ac1 ac2 ac7">0 </TD><TD class=alignCenter headers="ar1 ar11 ac1 ac8">0 </TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac11">2 </TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac13">2 </TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac14">0 </TD><TD class=alignCenter headers="ar1 ar11 ac9 ac10 ac15">0 </TD><TD class=alignCenter headers="ar1 ar11 ac9 ac16">0 </TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac3">58 </TD><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac4">0 </TD><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac5">41 </TD><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac6">0 </TD><TD class=alignCenter headers="ar1 ar12 ac1 ac2 ac7">17 </TD><TD class=alignCenter headers="ar1 ar12 ac1 ac8">6 </TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac11">152 </TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac12">0 </TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac13">98 </TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac14">7 </TD><TD class=alignCenter headers="ar1 ar12 ac9 ac10 ac15">47 </TD><TD class=alignCenter headers="ar1 ar12 ac9 ac16">14 </TD></TR></TBODY></TABLE>
              <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
              reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
              </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
              (October 28 to November 3, 2012)
              </TH><TH id=bc8 colSpan=5>Cumulative
              (August 26, 2012 to November 3, 2012)
              </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignCenter headers="br1 br2 bc1 bc2 bc3">0 </TD><TD class=alignCenter headers="br1 br2 bc1 bc2 bc4">0 </TD><TD class=alignCenter headers="br1 br2 bc1 bc2 bc5">0 </TD><TD class=alignCenter headers="br1 br2 bc1 bc2 bc6">0 </TD><TD class=alignCenter headers="br1 br2 bc1 bc7">0 </TD><TD class=alignCenter headers="br1 br2 bc8 bc9 bc10">7 </TD><TD class=alignCenter headers="br1 br2 bc8 bc9 bc11">1 </TD><TD class=alignCenter headers="br1 br2 bc8 bc9 bc12">6 </TD><TD class=alignCenter headers="br1 br2 bc8 bc9 bc13">0 </TD><TD class=alignCenter headers="br1 br2 bc8 bc14">2 </TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignCenter headers="br1 br3 bc1 bc2 bc3">4 </TD><TD class=alignCenter headers="br1 br3 bc1 bc2 bc4">0 </TD><TD class=alignCenter headers="br1 br3 bc1 bc2 bc5">2 </TD><TD class=alignCenter headers="br1 br3 bc1 bc2 bc6">2 </TD><TD class=alignCenter headers="br1 br3 bc1 bc7">0 </TD><TD class=alignCenter headers="br1 br3 bc8 bc9 bc10">9 </TD><TD class=alignCenter headers="br1 br3 bc8 bc9 bc11">0 </TD><TD class=alignCenter headers="br1 br3 bc8 bc9 bc12">6</TD><TD class=alignCenter headers="br1 br3 bc8 bc9 bc13">3 </TD><TD class=alignCenter headers="br1 br3 bc8 bc14">0 </TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignCenter headers="br1 br4 bc1 bc2 bc3">2 </TD><TD class=alignCenter headers="br1 br4 bc1 bc2 bc4">0 </TD><TD class=alignCenter headers="br1 br4 bc1 bc2 bc5">2 </TD><TD class=alignCenter headers="br1 br4 bc1 bc2 bc6">0 </TD><TD class=alignCenter headers="br1 br4 bc1 bc7">0 </TD><TD class=alignCenter headers="br1 br4 bc8 bc9 bc10">13 </TD><TD class=alignCenter headers="br1 br4 bc8 bc9 bc11">3 </TD><TD class=alignCenter headers="br1 br4 bc8 bc9 bc12">6 </TD><TD class=alignCenter headers="br1 br4 bc8 bc9 bc13">4 </TD><TD class=alignCenter headers="br1 br4 bc8 bc14">1 </TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignCenter headers="br1 br5 bc1 bc2 bc3">3 </TD><TD class=alignCenter headers="br1 br5 bc1 bc2 bc4">0 </TD><TD class=alignCenter headers="br1 br5 bc1 bc2 bc5">2 </TD><TD class=alignCenter headers="br1 br5 bc1 bc2 bc6">1 </TD><TD class=alignCenter headers="br1 br5 bc1 bc7">0 </TD><TD class=alignCenter headers="br1 br5 bc8 bc9 bc10">13 </TD><TD class=alignCenter headers="br1 br5 bc8 bc9 bc11">1 </TD><TD class=alignCenter headers="br1 br5 bc8 bc9 bc12">6 </TD><TD class=alignCenter headers="br1 br5 bc8 bc9 bc13">6 </TD><TD class=alignCenter headers="br1 br5 bc8 bc14">3 </TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignCenter headers="br1 br6 bc1 bc2 bc3">16 </TD><TD class=alignCenter headers="br1 br6 bc1 bc2 bc4">0 </TD><TD class=alignCenter headers="br1 br6 bc1 bc2 bc5">15 </TD><TD class=alignCenter headers="br1 br6 bc1 bc2 bc6">1 </TD><TD class=alignCenter headers="br1 br6 bc1 bc7">0 </TD><TD class=alignCenter headers="br1 br6 bc8 bc9 bc10">55</TD><TD class=alignCenter headers="br1 br6 bc8 bc9 bc11">2 </TD><TD class=alignCenter headers="br1 br6 bc8 bc9 bc12">37 </TD><TD class=alignCenter headers="br1 br6 bc8 bc9 bc13">16 </TD><TD class=alignCenter headers="br1 br6 bc8 bc14">1 </TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignCenter headers="br1 br7 bc1 bc2 bc3">0 </TD><TD class=alignCenter headers="br1 br7 bc1 bc2 bc4">0 </TD><TD class=alignCenter headers="br1 br7 bc1 bc2 bc5">0 </TD><TD class=alignCenter headers="br1 br7 bc1 bc2 bc6">0 </TD><TD class=alignCenter headers="br1 br7 bc1 bc7">0 </TD><TD class=alignCenter headers="br1 br7 bc8 bc9 bc10">0 </TD><TD class=alignCenter headers="br1 br7 bc8 bc9 bc11">0 </TD><TD class=alignCenter headers="br1 br7 bc8 bc9 bc12">0 </TD><TD class=alignCenter headers="br1 br7 bc8 bc9 bc13">0 </TD><TD class=alignCenter headers="br1 br7 bc8 bc14">0 </TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignCenter headers="br1 br8 bc1 bc2 bc3">25 </TD><TD class=alignCenter headers="br1 br8 bc1 bc2 bc4">0 </TD><TD class=alignCenter headers="br1 br8 bc1 bc2 bc5">21 </TD><TD class=alignCenter headers="br1 br8 bc1 bc2 bc6">4 </TD><TD class=alignCenter headers="br1 br8 bc1 bc7">0 </TD><TD class=alignCenter headers="br1 br8 bc8 bc9 bc10">97 </TD><TD class=alignCenter headers="br1 br8 bc8 bc9 bc11">7 </TD><TD class=alignCenter headers="br1 br8 bc8 bc9 bc12">61 </TD><TD class=alignCenter headers="br1 br8 bc8 bc9 bc13">29 </TD><TD class=alignCenter headers="br1 br8 bc8 bc14">7 </TD></TR></TBODY></TABLE>

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              Figure 4. Influenza tests reported and percentage of tests positive, Canada,
              by report week, 2012-2013


              Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
              Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
              Canada, by reporting week, 2012-2013


              Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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              Influenza strain characterizations

              Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 6 influenza viruses [4 A(H3N2) and 2 B]. The 4 influenza A(H3N2) viruses (from BC and ON) were antigenically similar to the vaccine strain A/Victoria/361/2011. Both of the influenza B viruses (from ON and QC) were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) (Figure 6).
              Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 6

              Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
              Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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              Antiviral resistance

              Since the beginning of the season, NML has tested 6 influenza viruses [4 A(H3N2) and 2 B] for resistance to oseltamivir and zanamivir and it was found that all were sensitive to oseltamivir and zanamivir. A total of 14 influenza A(H3N2) viruses were tested for amantadine resistance and all were resistant (Table 3).


              <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">4</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">4</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">14</TD><TD class=alignCenter headers="cr2 cc9">14 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">0</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">0</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">0</TD><TD class=alignCenter headers="cr3 cc9">0</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">2</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">2</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">6</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">6</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">14</TD><TD class=alignCenter headers="cr5 cc9">14 (100%)</TD></TR></TBODY></TABLE>
              Influenza-like Illness (ILI) Consultation Rate

              The national influenza-like-illness (ILI) consultation rate in week 44 increased from the previous week from 19.6 to 21.9 ILI consultations per 1,000 patient visits; but remains within the expected levels for this time of year (Figure 7). The highest consultation rates were observed in children less than 5 years of age (80.1/1,000) and children 5-19 years of age (37.4/1,000).
              Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



              Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
              Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
              Severe Respiratory Illness Surveillance

              Paediatric Influenza Hospitalizations and Deaths (IMPACT)
              Since the start of the 2012-13 season, one laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalization has been reported by the Immunization Monitoring Program Active (IMPACT) network. The hospitalization was reported in Saskatchewan in week 42, in a child between 10 and 16 years of age with influenza A.
              Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

              Influenza Hospitalizations and Deaths (Aggregate Surveillance System)

              In week 44, 11 laboratory-confirmed influenza A-associated hospitalizations were reported [ON(5), MB(1), AB(5)]. Of these, eight were aged ≥65 years, one between 45-64 years, one between 5-9 years and one < 1 year. Among the 11 influenza A hospitalizations, nine were Influenza A/H3N2 and two were unsubtyped. None of these cases were admitted to the Intensive Care Unit (ICU), and there were no deaths.

              To date this season, 27 influenza A-associated hospitalizations have been reported from four provinces (AB, MB, ON and NL). The majority of the cases (81.5%; 22/27) were ≥ 65 years of age. Of the influenza A hospitalizations for which subtype was available, 13.0% (3/23) were due to influenza A(H1N1)pdm09 and 87.0% (20/23) were due to A(H3N2).

              There have been three hospitalizations for which admission to ICU was required (from NL and AB). To date this season, no influenza-associated deaths have been reported.

              Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

              .../
              http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
              "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
              -Nelson Mandela

              Comment


              • #8
                Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 45

                Fluwatch Report: November 4 to November 10, 2012 (Week 45)

                Posted 2012-11-16For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
                <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w45_12/pdf/fw2012-45-eng.pdf">2012-2013 FluWatch report: November 4 to November 10, 2012 (Week 45) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

                »» Help with PDF documents


                Overall Influenza Summary
                • Influenza activity in Canada increased compared to the previous week with more regions reporting increased activity, particularly in Ontario; however overall activity in Canada still remains relatively low, with the majority of regions of the country reporting no activity.
                • In week 45, a total of 106 laboratory detections of influenza were reported, of which 92.5% were for influenza A viruses, predominantly A(H3N2).
                • Eight influenza outbreaks were reported in week 45: 5 in long-term care facilities and 3 in other settings.
                • One influenza-associated hospitalization was reported through the IMPACT network, with influenza A from BC, and 16 influenza-associated hospitalizations in adults ≥20 years of age were reported through Aggregate surveillance.
                • The ILI consultation rate decreased slightly in week 45 but is within the expected level for this time of year.
                Influenza Activity (geographic spread) and Outbreaks

                In week 45, 1 region [in ON] reported widespread activity, 3 regions [in AB(1), and ON(2)] reported localized activity, 13 regions [in BC(2), AB(2), MB(1), ON(3), QC(4) and NB(1)] reported sporadic activity and the rest reported no activity (Figures 1 and 2). Eight new influenza outbreaks were reported in week 45: 5 in long-term care facilities [in AB(3) and ON(2)] and 3 in other settings [in ON ] (Figure 3).
                Figure 1. Map of overall Influenza activity level by province and territory,
                Canada, Week 45





                Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
                Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
                Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


                †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
                * Total number of influenza surveillance regions in Canada
                Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
                Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


                Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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                Influenza and Other Respiratory Virus Detections

                The percentage of positive influenza tests increased from the previous week, from 2.8% in week 44 to 5.0% in week 45 (Figure 4 and link to figure 55). Among the influenza viruses detected this week (n=106), 92.5% were positive for influenza A viruses [of which 61.2% were A(H3), 6.1% were A(H1N1)pdm09, and 32.7% were A unsubtyped] and 7.5% for influenza B viruses (Table 1).
                Cumulative influenza virus detections by type/subtype to date are as follows: 91.9% influenza A [65.7% A(H3), 5.6% A(H1N1)pdm09 and 28.7% A(unsubtyped)] and 8.1% influenza B (Table 1).
                Detailed information on age and type/subtype was received for 168 cases to date this season (Table 2). The proportions of cases by age group were as follows: 13.7% were < 5 years; 8.3% were between 5-19 years; 14.3% were between 20-44 years; 15.5% were between 45-64 years of age; 48.2% were ≥ 65 years.
                The percentage positive for rhinovirus detections increased slightly from the previous week, from 17.1% in week 44 to 19.1% week 45; and remains the highest compared to the other respiratory viruses. The percentage positive for the other respiratory viruses in week 45 remained low, although several increased slightly compared to week 44: RSV 4.1%; parainfluenza 3.9%; adenovirus 2.3%; hMPV 0.2%; and coronavirus 2.3% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
                <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
                by Provincial Laboratories, Canada, 2012-2013
                </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
                (November 4 to November 10, 2012)
                </TH><TH id=ac9 colSpan=6>Cumulative
                (August 26, 2012 to November 10, 2012)
                </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
                B
                </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
                B
                </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
                ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
                </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
                (Un S) Table 1 note*
                </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">3</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">10</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">7</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">3</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">4</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">38</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">31</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">6</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">99</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">80</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">8</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">11</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">3</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">4</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">3</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">1</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">3</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">7</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">6</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">1</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">28</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">22</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">4</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">3</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">87</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">63</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">5</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">19</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">6</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

                </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">24</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">24</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">41</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">6</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">35</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">7</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

                </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

                </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

                </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

                </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">98</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">60</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">6</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">32</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">8</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">251</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">165</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">14</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">72</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">22</TD></TR></TBODY></TABLE>
                <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
                reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
                </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
                (November 4 to November 10, 2012)
                </TH><TH id=bc8 colSpan=5>Cumulative
                (August 26, 2012 to November 10, 2012)
                </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">4</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">2</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">1</TD><TD class=alignRight headers="br1 br2 bc1 bc7">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">19</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">2</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">14</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">3</TD><TD class=alignRight headers="br1 br2 bc8 bc14">4</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br3 bc1 bc7">1</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">13</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">9</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">4</TD><TD class=alignRight headers="br1 br3 bc8 bc14">1</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">4</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">2</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">1</TD><TD class=alignRight headers="br1 br4 bc1 bc7">0</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">23</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">5</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">12</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">6</TD><TD class=alignRight headers="br1 br4 bc8 bc14">1</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br5 bc1 bc7">0</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">22</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">1</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">16</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">5</TD><TD class=alignRight headers="br1 br5 bc8 bc14">4</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">8</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">8</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br6 bc1 bc7">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">78</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">2</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">59</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">17</TD><TD class=alignRight headers="br1 br6 bc8 bc14">3</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">18</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">2</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">14</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">2</TD><TD class=alignRight headers="br1 br8 bc1 bc7">1</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">155</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">10</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">110</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">35</TD><TD class=alignRight headers="br1 br8 bc8 bc14">13</TD></TR></TBODY></TABLE>

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                Figure 4. Influenza tests reported and percentage of tests positive, Canada,
                by report week, 2012-2013


                Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
                Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
                Canada, by reporting week, 2012-2013


                Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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                Influenza strain characterizations

                Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 9 influenza viruses [7 A(H3N2) and 2 B]. The 7 influenza A(H3N2) viruses (from BC, ON and QC) were antigenically similar to the vaccine strain A/Victoria/361/2011. Both of the influenza B viruses (from ON and QC) were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) (Figure 6).
                Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 9

                Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
                Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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                Antiviral resistance

                Since the beginning of the season, NML has tested 9 influenza viruses [7 A(H3N2) and 2 B] for resistance to oseltamivir and zanamivir and it was found that all were sensitive to oseltamivir and zanamivir. A total of 21 influenza A(H3N2) viruses were tested for amantadine resistance and all were resistant (Table 3).


                <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">7</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">7</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">21</TD><TD class=alignCenter headers="cr2 cc9">21 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">0</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">0</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">0</TD><TD class=alignCenter headers="cr3 cc9">0</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">2</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">2</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">9</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">9</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">21</TD><TD class=alignCenter headers="cr5 cc9">21 (100%)</TD></TR></TBODY></TABLE>
                Influenza-like Illness (ILI) Consultation Rate

                The national influenza-like-illness (ILI) consultation rate in week 45 decreased from the previous week from 22.2 to 19.1 ILI consultations per 1,000 patient visits; but remains within the expected levels for this time of year (Figure 7). The highest consultation rates were observed in children 5-19 years of age (31.3/1,000) and adults 20-64 years of age (17.6/1,000).
                Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



                Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
                Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
                Severe Respiratory Illness Surveillance

                Paediatric Influenza Hospitalizations and Deaths (IMPACT)

                In week 45, one new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalization was reported by the Immunization Monitoring Program Active (IMPACT) network. The case was reported in BC, in a child 10-16 years of age with unsubtyped influenza A.

                Since the start of the 2012-13 season, a total of three laboratory-confirmed influenza-associated paediatric hospitalizations have been reported by the IMPACT network. Two cases were between 10-16 years of age, and one between 5-9 years of age. In all three cases, influenza A was detected [two A(H3N2), one influenza A(unsubtyped)]. One case is reported to have had underlying conditions, and this case was admitted to the ICU.
                Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

                Influenza Hospitalizations and Deaths (Aggregate Surveillance System<SUP>*</SUP>)

                In week 45, 20 laboratory-confirmed influenza A-associated hospitalizations were reported [ON(9), AB(11)]. Of these, 4 were aged between 1-4 years, 1 between 20-44 years, 2 between 45-64 years, and 13 were aged ≥65 years. Of these hospitalizations, 15 were due to Influenza A(H3N2) and five were due to influenza A (unsubtyped). No deaths were reported this week. Of the 11 cases with available data, none were admitted to the Intensive Care Unit (ICU).

                To date this season, 49 influenza A-associated hospitalizations have been reported from four provinces (AB, MB, ON & NL). The majority of the cases (75.5%; 37/49) were ≥ 65 years of age. Of the influenza A hospitalizations for which subtype was available (n=40), 7.5% (3/40) were due to influenza A(H1N1)pdm09 and 92.5% (37/40) were due to A(H3). Of the 29 cases with available data, there have been four hospitalizations for which admission to ICU was required (from NL and AB). To date this season, one influenza A(H3)-associated death has been reported (week 36) in a hospitalized case who was ≥ 65 years of age.

                * Note: The number of influenza-associated hospitalizations reported by the Aggregate Surveillance System may include cases reported by the IMPACT network. Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

                .../
                http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
                "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
                -Nelson Mandela

                Comment


                • #9
                  Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 46

                  Fluwatch Report: November 11 to November 17, 2012 (Week 46)

                  Posted 2012-11-23For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
                  <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w46_12/pdf/fw2012-46-eng.pdf">2012-2013 FluWatch report: November 11 to November 17, 2012 (Week 46) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

                  »» Help with PDF documents


                  Overall Influenza Summary
                  • Influenza activity in Canada increased compared to the previous week with more regions reporting sporadic and localized activity.
                  • In week 46, a total of 151 laboratory detections of influenza were reported, of which 93.4% were for influenza A viruses, predominantly A(H3N2).
                  • Nine influenza outbreaks were reported in week 46: 6 in long-term care facilities and 3 in other settings.
                  • Three paediatric influenza-associated hospitalizations were reported this week through the IMPACT network, and 15 cases in adults ≥20 years of age were reported through Aggregate surveillance.
                  • The ILI consultation rate increased compared to the previous week but remains within the expected range for this time of year.
                  Influenza Activity (geographic spread) and Outbreaks

                  In week 46, 8 regions [in BC(1), AB(2) and ON(5)] reported localized activity, 16 regions [in BC(3), AB(2), SK(2), MB(1), ON(1), QC(5), PE(1) and NL(1)] reported sporadic activity and the rest reported no activity. No report was received from Nunavut (Figures 1 and 2). Nine new influenza outbreaks were reported in week 46: 6 in long-term care facilities [in BC(1), AB(1) and ON(4)] and 3 in other settings [in AB(1) and ON(2)] (Figure 3).
                  Figure 1. Map of overall Influenza activity level by province and territory,
                  Canada, Week 46





                  Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
                  Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
                  Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


                  †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
                  * Total number of influenza surveillance regions in Canada
                  Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
                  Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


                  Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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                  Influenza and Other Respiratory Virus Detections

                  The percentage of positive influenza tests increased from the previous week, from 4.5% in week 45 to 6.0% in week 46 (Figure 4 and link to figure 55). Among the influenza viruses detected this week (n=151), 93.4% were positive for influenza A viruses [of which 60.3% were A(H3), 3.5% were A(H1N1)pdm09, and 36.2% were A unsubtyped] and 6.6% for influenza B viruses (Table 1).
                  Cumulative influenza virus detections by type/subtype to date are as follows: 92.6% influenza A [64.3% A(H3), 5.0% A(H1N1)pdm09 and 30.7% A(unsubtyped)] and 7.4% influenza B (Table 1).
                  Detailed information on age and type/subtype was received for 369 cases to date this season (Table 2). The proportions of cases by age group were as follows: 16.0% were < 5 years; 10.8% were between 5-19 years; 16.0% were between 20-44 years; 18.2% were between 45-64 years of age; 39.0% were ≥ 65 years.
                  The percentage positive for rhinovirus detections decreased from the previous week, from 17.6% in week 45 to 15.1% week 46, but remains the highest compared to the other respiratory viruses. The percentage positive for RSV (5.3%), parainfluenza (5.1%) and coronavirus (3.5%) detections increased slightly compared to the previous week, while other percentages remained low: adenovirus 1.7%; hMPV 0.6% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
                  <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
                  by Provincial Laboratories, Canada, 2012-2013
                  </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
                  (November 11 to November 17, 2012)
                  </TH><TH id=ac9 colSpan=6>Cumulative
                  (August 26, 2012 to November 17, 2012)
                  </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
                  B
                  </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
                  B
                  </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
                  ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
                  </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
                  (Un S) Table 1 note*
                  </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">13</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">13</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">23</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">20</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">3</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">6</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">27</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">18</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">2</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">7</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">5</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">126</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">98</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">11</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">17</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">8</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">7</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">6</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">11</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">7</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">4</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">1</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">2</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">2</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">9</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">8</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">1</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">56</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">45</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">3</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">8</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">149</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">114</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">8</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">27</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">8</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

                  </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">33</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">33</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">74</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">6</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">68</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">8</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

                  </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

                  </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

                  </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">1</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

                  </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">141</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">85</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">5</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">51</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">10</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">398</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">256</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">20</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">122</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">32</TD></TR></TBODY></TABLE>
                  <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
                  reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
                  </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
                  (November 11 to November 17, 2012)
                  </TH><TH id=bc8 colSpan=5>Cumulative
                  (August 26, 2012 to November 17, 2012)
                  </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">18</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">9</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">8</TD><TD class=alignRight headers="br1 br2 bc1 bc7">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">54</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">4</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">34</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">16</TD><TD class=alignRight headers="br1 br2 bc8 bc14">5</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">9</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">6</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">3</TD><TD class=alignRight headers="br1 br3 bc1 bc7">2</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">36</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">29</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">7</TD><TD class=alignRight headers="br1 br3 bc8 bc14">4</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">16</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">13</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">3</TD><TD class=alignRight headers="br1 br4 bc1 bc7">0</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">57</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">6</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">38</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">13</TD><TD class=alignRight headers="br1 br4 bc8 bc14">2</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">11</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">2</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">4</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">5</TD><TD class=alignRight headers="br1 br5 bc1 bc7">4</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">56</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">4</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">37</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">15</TD><TD class=alignRight headers="br1 br5 bc8 bc14">11</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">24</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">12</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">11</TD><TD class=alignRight headers="br1 br6 bc1 bc7">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">141</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">3</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">93</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">45</TD><TD class=alignRight headers="br1 br6 bc8 bc14">3</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">1</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">1</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">79</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">4</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">45</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">30</TD><TD class=alignRight headers="br1 br8 bc1 bc7">6</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">345</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">17</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">232</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">96</TD><TD class=alignRight headers="br1 br8 bc8 bc14">25</TD></TR></TBODY></TABLE>

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                  Figure 4. Influenza tests reported and percentage of tests positive, Canada,
                  by report week, 2012-2013


                  Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
                  Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
                  Canada, by reporting week, 2012-2013


                  Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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                  Influenza strain characterizations

                  Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 20 influenza viruses [12 A(H3N2), 3 A(H1N1)pdm09 , and 5 influenza B]. The 12 influenza A(H3N2) viruses were antigenically similar to the vaccine strain A/Victoria/361/2011. The 3 A(H1N1)pdm09 viruses were antigenically similar to the vaccine strain A/California/07/09. Among the influenza B viruses, 4 were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) and one was similar to B/Brisbane/60/2008 (Victoria lineage; component of the 2011-2012 seasonal influenza vaccine) (Figure 6).
                  Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 20

                  Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
                  Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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                  Antiviral resistance

                  Since the beginning of the season, NML has tested 20 influenza viruses [12 A(H3N2), 3 A(H1N1)pdm09 and 5 B] for resistance to oseltamivir and zanamivir and it was found that all were sensitive to oseltamivir and zanamivir. A total of 36 influenza A [35 A(H3N2) and 1 A(H1N1)pdm09] viruses were tested for amantadine resistance and all were resistant (Table 3).


                  <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">12</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">12</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">35</TD><TD class=alignCenter headers="cr2 cc9">35 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">3</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">3</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">1</TD><TD class=alignCenter headers="cr3 cc9">1</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">5</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">5</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">20</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">20</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">36</TD><TD class=alignCenter headers="cr5 cc9">36 (100%)</TD></TR></TBODY></TABLE>
                  Influenza-like Illness (ILI) Consultation Rate

                  The national influenza-like-illness (ILI) consultation rate in week 46 increased from the previous week from 18.0 to 27.2 ILI consultations per 1,000 patient visits; but remains within the expected levels for this time of year (Figure 7). The highest consultation rates were observed in children 5-19 years of age (79.2/1,000) followed by children <5 years of age (67.2/1,000).
                  Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



                  Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
                  Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
                  Pharmacy Surveillance

                  The Canadian antiviral prescription rate has been increasing gradually since early October, 2012, from a rate of 10.3 antiviral prescriptions per 100,000 new prescriptions dispensed in week 41 to 17.2/100,000 in week 46. Based on retrospective data available since April 2011, antiviral prescription rates observed during interseasonal periods normally ranged from 4-11/100,000 while rates between 12-24/100,000 were observed during periods of low influenza virus circulation overall. In week 46, the highest rate was observed for children 2-17 years of age (26.6/100,000). Regionally, only the antiviral prescription rates for Ontario and British Columbia have shown a steady increase since early October.
                  Note: Pharmacy sales data are provided to the Public Health Agency of Canada by Rx Canada Inc. and sourced from major retail drug chains representing over 3,000 stores nationwide (excluding Nunavut) in 85% of Health Regions. Data provided include the number of new antiviral prescriptions (for Tamiflu and Relenza) and the total number of new prescriptions dispensed by Province/Territory and age group.
                  Severe Respiratory Illness Surveillance

                  Paediatric Influenza Hospitalizations and Deaths (IMPACT)

                  In week 46, 3 new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network. Two cases were reported from AB: one child <5 years of age with A(H3N2), and another 10-6 years of age with unsubtyped influenza A. One case was reported from QC in a child 2-4 years of age with unsubtyped influenza A, admitted to the Intensive Care Unit (ICU).

                  Since the start of the 2012-13 season, a total of 7 influenza-associated paediatric hospitalizations have been reported by the IMPACT network, all with influenza A. The number of cases by age group is as follows: one <5 years of age, one age 2-4 years, one age 5-9 years, and four 10-16 years. Two of the seven cases (28.6%) were admitted to the ICU.

                  Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

                  Influenza Hospitalizations and Deaths (Aggregate Surveillance System<SUP>*</SUP>)

                  In week 46, 19 laboratory confirmed influenza-associated hospitalizations were reported [ON(11), AB(4), MB(3), NL(1)]. The age breakdown was as follows: one aged between 1-4 years, one between 5-9 years, two between 15-19 years, two between 20-44 years, five 45-64 and eight were aged ≥65 years. Of these 19 influenza hospitalizations, 16 were influenza A [6 A(H3N2), 2 A(H1N1)pdm09, 8 A(unsubtyped)] and three were influenza B. Of the 8 cases with available data, 2 cases were admitted to the Intensive Care Unit (ICU): one case of Influenza A(H3) in a child aged between 5-9 years, and the second in a case of influenza B in an adult aged 45-64 years. There were no deaths.

                  To date this season, 68 influenza-associated hospitalizations have been reported from four provinces (AB, MB, ON & NL). The majority of cases have been influenza A (95.6%; 65/68). Two thirds of the cases (66.2%; 45/68) were ≥ 65 years of age. Of the 49 influenza A hospitalizations for which subtype was available, 12.2% (6/49) were due to influenza A(H1N1)pdm09 and 87.8% (43/49) were due to A(H3N2). Among the 37 cases with available data, there have been 6 hospitalizations for which admission to ICU was required (from NL and AB). To date this season, one influenza-associated death was reported (week 36) in a hospitalized Influenza A(H3) case who was aged ≥65 years.

                  * Note: The number of influenza-associated hospitalizations reported by the Aggregate Surveillance System may include cases reported by the IMPACT network. Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

                  .../
                  http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
                  "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
                  -Nelson Mandela

                  Comment


                  • #10
                    Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 47

                    Fluwatch Report: November 18 to November 24, 2012 (Week 47)

                    Posted 2012-11-30For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
                    <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w47_12/pdf/fw2012-47-eng.pdf">2012-2013 FluWatch report: November 18 to November 24, 2012 (Week 47) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

                    »» Help with PDF documents


                    Overall Influenza Summary
                    • The influenza season has started in Canada with increases in all influenza indicators observed this week.
                    • More regions reported sporadic or localized activity compared to the previous week.
                    • A total of 278 laboratory detections of influenza were reported, of which 97.8% were for influenza A viruses, predominantly A(H3N2).
                    • Eight influenza outbreaks were reported: one in a hospital, five in long-term care facilities and two in other settings.
                    • Seven paediatric influenza-associated hospitalizations were reported through the IMPACT network, and 27 cases in adults ≥20 years of age were reported through Aggregate surveillance.
                    • The ILI consultation rate increased compared to the previous week but is within the expected range for this time of year.
                    Influenza Activity (geographic spread) and Outbreaks

                    In week 47, seven regions [in BC(1), AB(1), SK(1) and ON(4)] reported localized activity, 21 regions [in BC(2), AB(4), SK(2), MB(1), ON(3), QC(6), NB(1), PE(1) and YK(1)] reported sporadic activity and the rest reported no activity (Figures 1 and 2). Eight new influenza outbreaks were reported in week 47: one in a hospital [in ON], five in long-term care facilities [in BC(1), AB(1), SK(1) and ON(2)] and two in other settings [in ON] (Figure 3).
                    Figure 1. Map of overall Influenza activity level by province and territory,
                    Canada, Week 47






                    Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
                    Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
                    Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


                    †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
                    * Total number of influenza surveillance regions in Canada
                    Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
                    Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


                    Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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                    Influenza and Other Respiratory Virus Detections

                    The percentage of positive influenza tests increased from the previous week, from 5.9% in week 46 to 9.6% in week 47 (Figure 4). Among the influenza viruses detected this week (n=278), 97.8% were positive for influenza A viruses [of which 55.9% were A(H3), 1.1% were A(H1N1)pdm09, and 43.0% were A unsubtyped]; 2.2% of viruses detected were influenza B viruses (Table 1). Cumulative influenza virus detections by type/subtype to date are as follows: 94.6% influenza A [61.8% A(H3), 3.4% A(H1N1)pdm09 and 34.8% A(unsubtyped)] and 5.4% influenza B (Table 1).
                    Detailed information on age and type/subtype was received for 625 cases to date this season (Table 2). The proportions of cases by age group were as follows: 13.3% were < 5 years; 12.8% were between 5-19 years; 16.8% were between 20-44 years; 16.8% were between 45-64 years of age; 40.3% were ≥ 65 years.
                    The percentage positive for rhinovirus detections continued to decline in week 47 to 15.3%, but remains the highest compared to the other respiratory viruses. The percentage positive for RSV (5.7%) increased compared to the previous week, while parainfluenza (4.4%) and coronavirus (3.1%) detections declined slightly. Other percentages of positive tests remained low: adenovirus 2.1%; hMPV 0.9% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
                    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
                    by Provincial Laboratories, Canada, 2012-2013
                    </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
                    (November 18 to November 24, 2012)</TH><TH id=ac9 colSpan=6>Cumulative
                    (August 26, 2012 to November 24, 2012)</TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
                    B</TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
                    B</TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
                    ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*</TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
                    (Un S) Table 1 note*</TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">30</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">24</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">6</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">53</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">44</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">9</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">6</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">39</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">24</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">15</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">165</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">129</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">11</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">25</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">9</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">13</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">11</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">24</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">18</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">6</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">3</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">3</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">12</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">11</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">2</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">109</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">89</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">3</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">17</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">260</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">203</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">11</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">46</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">8</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>
                    </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">77</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">77</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">151</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">6</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">145</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">10</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>
                    </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>
                    </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>
                    </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">2</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>
                    </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">272</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">152</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">3</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">117</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">6</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">672</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">415</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">23</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">234</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">38</TD></TR></TBODY></TABLE>
                    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
                    reported through case-based laboratory reporting, Canada, 2012-2013
                    Table 2 note*</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
                    (November 18 to November 24, 2012)</TH><TH id=bc8 colSpan=5>Cumulative
                    (August 26, 2012 to November 24, 2012)</TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">14</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">5</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">9</TD><TD class=alignRight headers="br1 br2 bc1 bc7">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">77</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">4</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">47</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">26</TD><TD class=alignRight headers="br1 br2 bc8 bc14">6</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">22</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">12</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">10</TD><TD class=alignRight headers="br1 br3 bc1 bc7">1</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">74</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">55</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">19</TD><TD class=alignRight headers="br1 br3 bc8 bc14">6</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">30</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">15</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">14</TD><TD class=alignRight headers="br1 br4 bc1 bc7">1</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">101</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">7</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">67</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">27</TD><TD class=alignRight headers="br1 br4 bc8 bc14">4</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">21</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">7</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">14</TD><TD class=alignRight headers="br1 br5 bc1 bc7">1</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">91</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">5</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">55</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">31</TD><TD class=alignRight headers="br1 br5 bc8 bc14">14</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">73</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">33</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">40</TD><TD class=alignRight headers="br1 br6 bc1 bc7">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">249</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">4</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">150</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">95</TD><TD class=alignRight headers="br1 br6 bc8 bc14">3</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">2</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">2</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">161</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">73</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">87</TD><TD class=alignRight headers="br1 br8 bc1 bc7">3</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">594</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">20</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">376</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">198</TD><TD class=alignRight headers="br1 br8 bc8 bc14">33</TD></TR></TBODY></TABLE>

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                    Figure 4. Influenza tests reported and percentage of tests positive, Canada,
                    by report week, 2012-2013



                    Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
                    Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
                    Canada, by reporting week, 2012-2013



                    Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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                    Influenza strain characterizations

                    Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 35 influenza viruses [22 A(H3N2), 4 A(H1N1)pdm09 , and 9 influenza B]. The 22 influenza A(H3N2) viruses were antigenically similar to the vaccine strain A/Victoria/361/2011. The 4 A(H1N1)pdm09 viruses were antigenically similar to the vaccine strain A/California/07/09. Among the influenza B viruses, 7 were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) and 2 were similar to B/Brisbane/60/2008 (Victoria lineage; component of the 2011-2012 seasonal influenza vaccine) (Figure 6).
                    Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 35

                    Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
                    Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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                    Antiviral resistance

                    Since the beginning of the season, NML has tested 31 influenza viruses [19 A(H3N2), 4 A(H1N1)pdm09 and 8 B] for resistance to oseltamivir and has tested 30 influenza viruses [18 A(H3N2), 4 A(H1N1)pdm09 and 8 B] for resistance to zanamivir and it was found that all were sensitive to oseltamivir and zanamivir. A total of 49 influenza A viruses [46 A(H3N2) and 3 A(H1N1)pdm09] were tested for amantadine resistance and all were resistant (Table 3).


                    <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">19</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">18</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">46</TD><TD class=alignCenter headers="cr2 cc9">46 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">4</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">4</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">3</TD><TD class=alignCenter headers="cr3 cc9">3</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">8</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">8</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">31</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">30</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">49</TD><TD class=alignCenter headers="cr5 cc9">49 (100%)</TD></TR></TBODY></TABLE>
                    Influenza-like Illness (ILI) Consultation Rate

                    The national influenza-like-illness (ILI) consultation rate in week 47 increased from the previous week from 21.3 to 28.6 ILI consultations per 1,000 patient visits which is within the expected level for this time of year (Figure 7). The highest consultation rates were observed in children 5-19 years of age (69.1/1,000) followed by children <5 years of age (20.3/1,000).
                    Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



                    Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
                    Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
                    Pharmacy Surveillance

                    Following a gradual increase since early October 2012 (week 40), the Canadian antiviral prescription rate jumped from a rate of 17.3 antiviral prescriptions per 100,000 new prescriptions dispensed in week 46 to 47.7/100,000 in week 47, due in large part to increases in antiviral prescriptions reported from BC, AB, ON and QC. Based on data collected since April 2011, the current rate of antiviral prescriptions of 47.7/100,000 is higher than expected based on the current percentage of positive laboratory tests for influenza, and closer to the rate observed when the percentage of influenza detections was between 10%-15%. In week 47, the antiviral prescription rates increased for all age groups; however the highest rate, and highest rate of increase, was observed in seniors >75 years of age (120.6/100,000).
                    Note: Pharmacy sales data are provided to the Public Health Agency of Canada by Rx Canada Inc. and sourced from major retail drug chains representing over 3,000 stores nationwide (excluding Nunavut) in 85% of Health Regions. Data provided include the number of new antiviral prescriptions (for Tamiflu and Relenza) and the total number of new prescriptions dispensed by Province/Territory and age group.
                    Severe Respiratory Illness Surveillance

                    Paediatric Influenza Hospitalizations and Deaths (IMPACT)

                    In week 47, seven new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network. Five cases were reported with unsubtyped influenza A [from ON(1) and QC(4)], one with A(H3N2) [from AB], and one with influenza B [from SK]. One case in QC was admitted to the ICU. Two of the seven cases were under 6 months of age, two were between 6-23 months, two age 2-4 years, and one age 5-9 years.
                    Since the start of the 2012-13 season, a total of 20 influenza-associated paediatric hospitalizations have been reported by the IMPACT network: 18 (90%) with influenza A [of which 6 (33%) were A(H3N2) and 12 (67%) were unsubtyped], and 2 (10%) with influenza B. The distribution of cases by age group is as follows: 4 (20%) <6 months of age, 3 (15%) age 6-23 months, 6 (30%) age 2-4 years, 3 (15%) age 5-9 years, and 4 (20%) age 10-16 years. Three of the 20 cases (15%) were admitted to the ICU.

                    Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

                    Influenza Hospitalizations and Deaths (Aggregate Surveillance System<SUP>*</SUP>)

                    In week 47, 36 laboratory confirmed influenza A-associated hospitalizations were reported [AB(13), MB(2), ON(20), PE(1)]. The age group most affected was ≥ 65 years of age (15/36; 41.7%). Of these 36 influenza hospitalizations, 35 were influenza A [A(H1N1)pdm09(3), A(H3)(18), A(unsubtyped)(14)] and one was influenza B. Of the 16 cases with available data, one case of influenza A(H3) in a person aged between 20-44years was admitted to the Intensive Care Unit (ICU). There were 3 deaths, all in influenza A cases in persons ≥ 65 years of age. Note that the cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting. No report was received from YT this week.

                    To date this season, 103 influenza-associated hospitalizations have been reported from five provinces (AB, MB, NL,ON and PEI). The majority of cases have been influenza A (99/103; 96.1%). More than half of the cases (60/103; 58.2%) were ≥ 65 years of age. Of the influenza A hospitalizations for which subtype was available (n=71), 12.7% (9/71) were due to influenza A(H1N1)pdm09, and 87.3% (62/71) were due to A(H3). Among the 52 cases with available data, there have been 8 hospitalisations for which admission to ICU was required, half of which were persons ≥ 65 years of age. To date this season, four deaths have been reported: all in influenza A cases (3 H3; 1 unsubtyped) aged 65 years or older. Note that the cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting.

                    * Note: The number of influenza-associated hospitalizations reported by the Aggregate Surveillance System may include cases reported by the IMPACT network. Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

                    .../
                    http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
                    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
                    -Nelson Mandela

                    Comment


                    • #11
                      Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 48

                      Fluwatch Report: November 25 to December 1, 2012 (Week 48)

                      Posted 2012-12-07For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
                      <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w48_12/pdf/fw2012-48-eng.pdf">2012-2013 FluWatch report: November 25 to December 1, 2012 (Week 48) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

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                      Overall Influenza Summary
                      • Influenza activity in Canada continued to increase in week 48.
                      • More regions reported sporadic activity compared to the previous week.
                      • A total of 414 laboratory detections of influenza were reported, of which 97.3% were for influenza A viruses, predominantly A(H3N2).
                      • Eleven influenza outbreaks were reported, all in long-term-care facilities.
                      • Eight paediatric influenza-associated hospitalizations were reported through the IMPACT network, and six hospitalizations in adults ≥20 years of age were reported through Aggregate surveillance.
                      • The ILI consultation rate increased compared to the previous week and is above the expected range for this time of year.
                      Influenza Activity (geographic spread) and Outbreaks

                      In week 48, 13 regions [in BC(1), AB(2), SK(2), ON(6), and QC(2)] reported localized activity, 16 regions [in BC(3), AB(3), SK(1), MB(1), ON(1), QC(4), NB(1), PE(1), and YK(1)] reported sporadic activity and the rest reported no activity (Figures 1 and 2). Eleven new influenza outbreaks were reported in week 48: all in long-term-care facilities [in BC(1), AB(3), ON(5), and QC(2)] (Figure 3).
                      Figure 1. Map of overall Influenza activity level by province and territory,
                      Canada, Week 48





                      Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
                      Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
                      Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


                      †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
                      * Total number of influenza surveillance regions in Canada
                      Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
                      Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


                      Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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                      Influenza and Other Respiratory Virus Detections

                      The percentage of positive influenza tests increased from 9.5% in week 47 to 11.7% in week 48 (Figure 4). Among the influenza viruses detected this week (n=414), 97.3% were positive for influenza A viruses [of which 53.8% were A(H3), 1.0% were A(H1N1)pdm09, and 45.2% were A(unsubtyped)]; and 2.7% were positive for influenza B (Table 1). Cumulative influenza virus detections by type/subtype to date are as follows: 95.7% influenza A [61.0% A(H3), 2.5% A(H1N1)pdm09 and 36.5% A(unsubtyped)] and 4.3% influenza B (Table 1).
                      Detailed information on age and type/subtype was received for 929 cases to date this season (Table 2). The proportions of cases by age group were as follows: 13.0% were < 5 years; 11.6% were between 5-19 years; 18.0% were between 20-44 years; 16.6% were between 45-64 years of age; 40.8% were ≥ 65 years.
                      The percentage of tests positive for rhinovirus detections continued to decline in week 48 to 10.9%, and is now below the percentage positive for influenza. The percentage positive for RSV (6.7%) increased compared to the previous week. Parainfluenza (4.3%) detections were stable and coronavirus (3.1%) detections increased slightly. Other percentages of positive tests remained low: adenovirus 1.5%; hMPV 0.6% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
                      <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
                      by Provincial Laboratories, Canada, 2012-2013

                      </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
                      (November 25 to December 1, 2012)

                      </TH><TH id=ac9 colSpan=6>Cumulative
                      (August 26, 2012 to December 1, 2012)

                      </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
                      B

                      </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
                      B

                      </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
                      ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*

                      </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
                      (Un S) Table 1 note*

                      </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">18</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">16</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">71</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">64</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">6</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">8</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">66</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">51</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">15</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">234</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">197</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">11</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">26</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">10</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">38</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">35</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">3</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">3</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">62</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">53</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">9</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">6</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">2</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">2</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">14</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">13</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">3</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">149</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">111</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">3</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">35</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">412</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">320</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">14</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">78</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">10</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>


                      </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">128</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">128</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">279</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">6</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">273</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">12</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>


                      </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>


                      </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>


                      </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>


                      </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">3</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">403</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">217</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">4</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">182</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">11</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">1081</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">659</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">27</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">395</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">49</TD></TR></TBODY></TABLE>
                      <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
                      reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*

                      </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
                      (November 25 to December 1, 2012)

                      </TH><TH id=bc8 colSpan=5>Cumulative
                      (August 26, 2012 to December 1, 2012)

                      </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1>< 5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">20</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">6</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">14</TD><TD class=alignRight headers="br1 br2 bc1 bc7">0</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">115</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">5</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">68</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">42</TD><TD class=alignRight headers="br1 br2 bc8 bc14">6</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">13</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">6</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">7</TD><TD class=alignRight headers="br1 br3 bc1 bc7">1</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">100</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">73</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">27</TD><TD class=alignRight headers="br1 br3 bc8 bc14">8</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">30</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">12</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">17</TD><TD class=alignRight headers="br1 br4 bc1 bc7">3</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">160</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">9</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">101</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">50</TD><TD class=alignRight headers="br1 br4 bc8 bc14">7</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">32</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">14</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">18</TD><TD class=alignRight headers="br1 br5 bc1 bc7">0</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">140</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">5</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">83</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">52</TD><TD class=alignRight headers="br1 br5 bc8 bc14">14</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">85</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">32</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">53</TD><TD class=alignRight headers="br1 br6 bc1 bc7">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">376</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">4</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">219</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">153</TD><TD class=alignRight headers="br1 br6 bc8 bc14">3</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">3</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">3</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">0</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">181</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">71</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">109</TD><TD class=alignRight headers="br1 br8 bc1 bc7">4</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">894</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">23</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">547</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">324</TD><TD class=alignRight headers="br1 br8 bc8 bc14">38</TD></TR></TBODY></TABLE>

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                      Figure 4. Influenza tests reported and percentage of tests positive, Canada,
                      by report week, 2012-2013


                      Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
                      Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
                      Canada, by reporting week, 2012-2013


                      Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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                      Influenza strain characterizations

                      Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 49 influenza viruses [33 A(H3N2), 6 A(H1N1)pdm09 , and 10 influenza B]. The 33 influenza A(H3N2) viruses were antigenically similar to the vaccine strain A/Victoria/361/2011. The six A(H1N1)pdm09 viruses were antigenically similar to the vaccine strain A/California/07/09. Among the influenza B viruses, seven were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) and three were similar to B/Brisbane/60/2008 (Victoria lineage; component of the 2011-2012 seasonal influenza vaccine) (Figure 6).
                      Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 49

                      Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
                      Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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                      Antiviral resistance

                      Since the beginning of the season, NML has tested 45 influenza viruses [28 A(H3N2), 7 A(H1N1)pdm09 and 10 B] for resistance to oseltamivir, and 44 influenza viruses [27 A(H3N2), 7 A(H1N1)pdm09 and 10 B] for resistance to zanamivir. All viruses tested were sensitive to oseltamivir and zanamivir. A total of 78 influenza A viruses [72 A(H3N2) and 6 A(H1N1)pdm09] were tested for amantadine resistance and all were resistant (Table 3).


                      <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">28</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">27</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">72</TD><TD class=alignCenter headers="cr2 cc9">72 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">7</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">7</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">6</TD><TD class=alignCenter headers="cr3 cc9">6</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">10</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">10</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">45</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">44</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">78</TD><TD class=alignCenter headers="cr5 cc9">78 (100%)</TD></TR></TBODY></TABLE>
                      Influenza-like Illness (ILI) Consultation Rate

                      The national influenza-like-illness (ILI) consultation rate in week 48 increased from the previous week: from 25.1 to 39.8 ILI consultations per 1,000 patient visits, which is above the expected level for this time of year (Figure 7). The highest consultation rates were observed in children 5-19 years of age (102.2/1,000) followed by children <5 years of age (62.5/1,000).
                      Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



                      Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
                      Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)
                      Pharmacy Surveillance

                      Following the sharp increase in the Canadian antiviral prescription rate to 47.8 antiviral prescriptions per 100,000 new prescriptions dispensed in week 47, the rate continued to increase to 58.6 in week 48, due to increases in antiviral prescriptions reported from BC, AB, ON and SK. The current rate of 58.6/100,000 is higher than expected based on the current percentage of positive laboratory tests for influenza, and closer to the rate observed when the percentage of influenza detections was between 15%-18% (data from April 2011 to present). In week 48, the antiviral prescription rates increased for all age groups except among seniors (≥75 years), however, the rate among seniors remained the highest of all the age groups in week 48( 97.0/100,000).
                      Note: Pharmacy sales data are provided to the Public Health Agency of Canada by Rx Canada Inc. and sourced from major retail drug chains representing over 3,000 stores nationwide (excluding Nunavut) in 85% of Health Regions. Data provided include the number of new antiviral prescriptions (for Tamiflu and Relenza) and the total number of new prescriptions dispensed by Province/Territory and age group.
                      Severe Respiratory Illness Surveillance

                      Paediatric Influenza Hospitalizations and Deaths (IMPACT)

                      In week 48, eight new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network. Six cases were reported with unsubtyped influenza A [from QC(5) and MB(1)], and two with A(H3N2) [from AB]. One case in QC between 10-16 years of age was admitted to the ICU. The age distribution of hospitalized cases is a follows: one under 6 months of age, two between 6-23 months, three aged 2-4 years, and two aged 10-16 years.

                      Since the start of the 2012-13 season, a total of 27 influenza-associated paediatric hospitalizations have been reported by the IMPACT network: 25 (92.3%) with influenza A [of which 8 (32%) were A(H3N2) and 17 (68%) were unsubtyped], and two (7.7%) with influenza B. The distribution of cases by age group is as follows: 5 (18.5%) <6 months of age, 4 (14.8%) age 6-23 months, 8 (29.6%) age 2-4 years, 4 (14.8%) age 5-9 years, and 6 (22.2%) age 10-16 years. Five of the 27 cases (18.5%) were admitted to the ICU.

                      Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

                      Influenza Hospitalizations and Deaths (Aggregate Surveillance System<SUP>*</SUP>)

                      In week 48, 11 laboratory confirmed influenza-associated hospitalizations were reported [AB(8), ON(3)]. Of these, five were in children aged 0-4 years, three in adults over 65 years of age, and three in adults aged 45-64 years. Eight of the 11 hospitalizations were influenza A(H3) and three were A(unsubtyped). Of the 8 cases with available data, two cases of influenza A(unsubtyped) were admitted to the Intensive Care Unit (ICU): one adult aged 46-64 years, and one adult aged 65+. There was one death in influenza A case aged ≥ 65 years. Note that the cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting.

                      To date this season, 114 influenza-associated hospitalizations have been reported from five provinces (AB, MB, NL, ON and PE). The majority of cases have been influenza A (96.5%, 110/114). More than half of the cases (55.2%, 63/114) are ≥ 65 years of age. Of the 85 influenza A hospitalizations for which subtype was available, 10.6% (9/85) were due to influenza A(H1N1)pdm09, and 84.7% (72/85) were due to A(H3). Among the 60 cases with available data, there have been 10 hospitalizations for which admission to ICU was required, half of which were persons ≥ 65 years of age. To date this season, six deaths have been reported: all in influenza A cases (4 H3; 2 unsubtyped) aged 65 years or older. Note that the cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting.

                      * Note: The number of influenza-associated hospitalizations reported by the Aggregate Surveillance System may include cases reported by the IMPACT network. Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

                      .../
                      http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
                      "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
                      -Nelson Mandela

                      Comment


                      • #12
                        Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 49

                        Fluwatch Report: December 2 to December 8, 2012 (Week 49)

                        Posted 2012-12-14For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
                        <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w49_12/pdf/fw2012-49-eng.pdf">2012-2013 FluWatch report: December 2 to December 8, 2012 (Week 49) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

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                        Overall Influenza Summary
                        • Influenza activity in Canada continued to increase in week 49; one region reported widespread activity, and more regions reported sporadic or localized activity.
                        • A total of 816 laboratory detections of influenza were reported, of which 96.4% were for influenza A viruses, predominantly A(H3N2).
                        • Twenty-two influenza outbreaks were reported: 12 in long-term-care facilities, 5 in schools and 5 in other facilities.
                        • Twenty-five paediatric influenza-associated hospitalizations were reported through the IMPACT network, all but one with influenza A
                        • Eighty-seven hospitalizations and 8 deaths in adults ≥20 years of age were reported through Aggregate surveillance, all but two with influenza A.
                        • The ILI consultation rate decreased compared to the previous week and is within the expected range for this time of year.
                        Influenza Activity (geographic spread) and Outbreaks

                        In week 49, one region [in ON] reported widespread influenza activity, 13 regions [in BC(2), AB(2), SK(1), ON(4), QC(2), NB(1) and NL(1)] reported localized activity, 21 regions [in BC(3), AB(3), SK(2), MB(2), ON(2), QC(4), NB(3), PE(1), and YK(1)] reported sporadic activity and the rest reported no activity (Figures 1 and 2). Twenty-two new influenza outbreaks were reported in week 49: 12 in long-term-care facilities [in BC(2), AB(1), SK(2), ON(5), and QC(2)], five in schools [in BC(2), AB(2) and NB(1)], and 5 in other facilities [in ON(4) and NL(1)] (Figure 3).
                        Figure 1. Map of overall Influenza activity level by province and territory,
                        Canada, Week 49





                        Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
                        Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
                        Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


                        †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
                        * Total number of influenza surveillance regions in Canada
                        Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
                        Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


                        Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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                        Influenza and Other Respiratory Virus Detections

                        The percentage of positive influenza tests increased from 11.7% in week 48 to 17.8% in week 49 (Figure 4). Among the influenza viruses detected this week (n=816), 96.4% were positive for influenza A viruses [of which 46.3% were A(H3), 1.8% were A(H1N1)pdm09, and 52.0% were A(unsubtyped)]; and 3.6% were positive for influenza B (Table 1). Cumulative influenza virus detections by type/subtype to date are as follows: 96.0% influenza A [55.7% A(H3), 2.1% A(H1N1)pdm09 and 42.2% A(unsubtyped)] and 4.0% influenza B (Table 1).
                        Detailed information on age and type/subtype was received for 1731 cases to date this season (Table 2). The proportions of cases by age group were as follows: 14.4% were < 5 years; 12.1% were between 5-19 years; 18.5% were between 20-44 years; 16.9% were between 45-64 years of age; 38.1% were ≥ 65 years.
                        The percentage of tests positive for RSV continued to increase, from 6.8% in week 48 to 8.5% in week 49, primarily due to increases in detections in the Prairie Provinces. The percentage positive for rhinovirus continued to decline to 9.3%. Parainfluenza detections declined slightly (from 4.6% to 3.8%) and coronavirus detections increased slightly (from 3.4% to 4.1%). Other percentages of positive tests remained low: adenovirus 1.2%; hMPV 0.8% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
                        <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
                        by Provincial Laboratories, Canada, 2012-2013
                        </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
                        (December 2 to December 8, 2012)
                        </TH><TH id=ac9 colSpan=6>Cumulative
                        (August 26, 2012 to December 8, 2012)
                        </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
                        B
                        </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
                        B
                        </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
                        ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
                        </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
                        (Un S) Table 1 note*
                        </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">6</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">6</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">76</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">70</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">6</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">8</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">97</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">74</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">22</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">9</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">337</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">291</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">12</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">34</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">20</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">41</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">36</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">4</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">103</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">89</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">13</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">8</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">4</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">4</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">18</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">17</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">3</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">289</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">212</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">10</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">67</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">9</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">701</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">532</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">24</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">145</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">19</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

                        </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">342</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">30</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">312</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">9</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">622</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">36</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">586</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">21</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

                        </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">5</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">2</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">8</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">3</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">3</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

                        </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

                        </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">4</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">4</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

                        </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">2</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">2</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">5</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">2</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">3</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">787</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">364</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">14</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">409</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">29</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">1874</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">1043</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">40</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">791</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">79</TD></TR></TBODY></TABLE>
                        <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
                        reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
                        </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
                        (December 2 to December 8, 2012)
                        </TH><TH id=bc8 colSpan=5>Cumulative
                        (August 26, 2012 to December 8, 2012)
                        </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1><5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">88</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">2</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">40</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">46</TD><TD class=alignRight headers="br1 br2 bc1 bc7">5</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">238</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">8</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">139</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">91</TD><TD class=alignRight headers="br1 br2 bc8 bc14">12</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">59</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">30</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">29</TD><TD class=alignRight headers="br1 br3 bc1 bc7">4</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">197</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">138</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">59</TD><TD class=alignRight headers="br1 br3 bc8 bc14">13</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">104</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">38</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">65</TD><TD class=alignRight headers="br1 br4 bc1 bc7">4</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">308</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">11</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">176</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">121</TD><TD class=alignRight headers="br1 br4 bc8 bc14">12</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">86</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">26</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">59</TD><TD class=alignRight headers="br1 br5 bc1 bc7">3</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">273</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">6</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">152</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">115</TD><TD class=alignRight headers="br1 br5 bc8 bc14">19</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">202</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">65</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">136</TD><TD class=alignRight headers="br1 br6 bc1 bc7">1</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">654</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">5</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">350</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">299</TD><TD class=alignRight headers="br1 br6 bc8 bc14">5</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">1</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">1</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">5</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">4</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">1</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">540</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">5</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">200</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">335</TD><TD class=alignRight headers="br1 br8 bc1 bc7">17</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">1675</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">30</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">959</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">686</TD><TD class=alignRight headers="br1 br8 bc8 bc14">61</TD></TR></TBODY></TABLE>

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                        Figure 4. Influenza tests reported and percentage of tests positive, Canada,
                        by report week, 2012-2013


                        Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
                        Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
                        Canada, by reporting week, 2012-2013


                        Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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                        Influenza strain characterizations

                        Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 71 influenza viruses [51 A(H3N2), 10 A(H1N1)pdm09 , and 10 influenza B]. The 51 influenza A(H3N2) viruses were antigenically similar to the vaccine strain A/Victoria/361/2011. The 10 A(H1N1)pdm09 viruses were antigenically similar to the vaccine strain A/California/07/09. Among the influenza B viruses, seven were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) and three were similar to B/Brisbane/60/2008 (Victoria lineage; component of the 2011-2012 seasonal influenza vaccine) (Figure 6).
                        Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 71

                        Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
                        Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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                        Antiviral resistance

                        Since the beginning of the season, NML has tested 70 influenza viruses for resistance to oseltamivir, and 69 influenza viruses for resistance to zanamivir. All viruses tested were sensitive to oseltamivir and zanamivir. A total of 102 influenza A viruses were tested for amantadine resistance and all were resistant (Table 3).


                        <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">49</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">48</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">95</TD><TD class=alignCenter headers="cr2 cc9">95 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">11</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">11</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">7</TD><TD class=alignCenter headers="cr3 cc9">7</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">10</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">10</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">70</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">69</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">102</TD><TD class=alignCenter headers="cr5 cc9">102 (100%)</TD></TR></TBODY></TABLE>
                        Influenza-like Illness (ILI) Consultation Rate

                        The national influenza-like-illness (ILI) consultation rate in week 49 decreased from the previous week: from 39.8 to 33.6 ILI consultations per 1,000 patient visits, which is within the expected level for this time of year (Figure 7). The highest consultation rates were observed in children <5 years of age (57.0/1,000) followed by children 5-19 years of age (53.5/1,000).
                        Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



                        Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
                        Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)

                        Pharmacy Surveillance

                        The Canadian antiviral prescription rate continued to increase in week 49 to 71.8 antiviral prescriptions per 100,000 new prescriptions dispensed. The current rate of 71.8/100,000 is slightly higher than expected based on the current percentage of positive laboratory tests for influenza, and closer to the rate observed when the percentage of influenza detections was approximately 20% (data from April 2011 to present). Rates of 50-100/100,000 were observed during the peak period during the 2011-12 influenza season, when the percentage of positive influenza tests was between 18%-24%. In week 49, the highest antiviral prescription rate was among children at 122.3/100,000.

                        Note: Pharmacy sales data are provided to the Public Health Agency of Canada by Rx Canada Inc. and sourced from major retail drug chains representing over 3,000 stores nationwide (excluding Nunavut) in 85% of Health Regions. Data provided include the number of new antiviral prescriptions (for Tamiflu and Relenza) and the total number of new prescriptions dispensed by Province/Territory and age group.

                        Severe Respiratory Illness Surveillance

                        Paediatric Influenza Hospitalizations and Deaths (IMPACT)

                        In week 49, 25 new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network: seven from AB, one from MB, six from ON, and eleven from QC. Among the 24 cases identified with influenza A, 20 were A(unsubtyped) and 4 were A(H3N2). One case was identified with influenza B. The age distribution is as follows: four under 6 months of age, nine between 6-23 months, four aged 2-4 years, six aged 5-9 years, and two aged 10-16 years. No ICU admissions or deaths were reported this week.
                        S
                        ince the start of the 2012-13 season, a total of 54 influenza-associated paediatric hospitalizations have been reported by the IMPACT network: 51 (94.4%) with influenza A [of which 12 (23.5%) were A(H3N2) and 39 (76.5%) were A(unsubtyped)], and three (5.6%) with influenza B. The distribution of cases by age group is as follows: 9 (16.7%) <6 months of age, 13 (24.1%) age 6-23 months, 14 (25.9%) age 2-4 years, 10 (18.5%) age 5-9 years, and 8 (14.8%) age 10-16 years. Five of the 54 cases (9.3%) were admitted to the ICU. No deaths have been reported to date.
                        Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

                        Influenza Hospitalizations and Deaths (Aggregate Surveillance System<SUP>*</SUP>)

                        In week 49, 112 laboratory confirmed influenza associated hospitalizations were reported [AB(12), ON(100)]. Three were influenza B, and 109 were influenza A. Of the 109 influenza A associated hospitalizations, 46% (50/109) were A(H3) and the remaining were A(unsubtyped). Almost half of the cases (49.5% 55/111) were aged 65+ and 22.5% (25/111) were aged between 45-64 years. Of the 12 cases with available data (from Alberta), none were admitted to the Intensive Care Unit (ICU). Nine deaths were reported in Ontario, all in influenza A cases: one A(unsubtyped) aged 1-4 years; one A(unsubtyped) aged 20-44 years; and 7 in persons aged ≥65 years [(3 A(H3) and 4 A(unsubtyped)].

                        To date this season, 224 influenza-associated hospitalizations have been reported. The majority of cases have been influenza A (97%, 217/224). Approximately half of the cases (52%, 116/223) are ≥ 65 years of age. Of the 136 influenza A hospitalizations for which subtype was available, 6.6% (9/136) were due to influenza A(H1N1)pdm09, and 88.2% (120/136) were due to A(H3). Among the 70 cases with available data, there have been 9 hospitalisations for which admission to ICU was required, four (44.4%) were persons ≥ 65 years of age. To date this season, 15 deaths have been reported: all in influenza A cases (7 A(H3); 8 A(unsubtyped)).

                        * Note: The number of influenza-associated hospitalizations reported by the Aggregate Surveillance System may include cases reported by the IMPACT network. Note that the cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting. Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

                        .../
                        http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
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                        • #13
                          Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 50

                          Fluwatch Report: December 9 to December 15, 2012 (Week 50)

                          Posted 2012-12-21For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
                          <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w50_12/pdf/fw2012-50-eng.pdf">2012-2013 FluWatch report: December 9 to December 15, 2012 (Week 50) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

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                          Overall Influenza Summary
                          • Influenza activity in Canada continued to increase in week 50; four regions reported widespread activity, and the majority of regions reported influenza circulation.
                          • A total of 1502 laboratory detections of influenza were reported, of which 96.7% were for influenza A viruses, predominantly A(H3N2).
                          • Thirty-one influenza outbreaks were reported: 24 in long-term-care facilities, 4 in hospitals and 3 in other facilities.
                          • Thirty-three paediatric influenza-associated hospitalizations were reported through the IMPACT network, all but one with influenza A
                          • Seventy-three hospitalizations with three deaths in adults ≥20 years of age were reported through Aggregate surveillance, all with influenza A.
                          • The ILI consultation rate increased compared to the previous week and is within the expected range for this time of year.
                          Influenza Activity (geographic spread) and Outbreaks

                          In week 50, the majority of regions reported influenza activity with four regions [in ON] reporting widespread influenza activity, nine regions [in BC(1), AB(2), SK(1), MB(1), ON(2), QC(2)] reporting localized activity, and 23 regions reporting sporadic activity [in all provinces and territories except NL, NT and NU] (Figures 1 and 2). Thirty-one new influenza outbreaks were reported in week 50: 24 in long-term-care facilities [in BC(1), AB(3), SK(3), MB(1), ON(13), QC(2) and NS(1)], four in hospitals [in AB(1) and ON(3)], and three in other facilities [in ON] (Figure 3).
                          Figure 1. Map of overall Influenza activity level by province and territory,
                          Canada, Week 50





                          Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
                          Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
                          Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


                          †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
                          * Total number of influenza surveillance regions in Canada
                          Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
                          Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


                          Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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                          Influenza and Other Respiratory Virus Detections

                          The percentage of positive influenza tests increased from 18.2% in week 49 to 24.2% in week 50 (Figure 4). Among the influenza viruses detected this week (n=1502), 96.7% were positive for influenza A viruses [of which 36.9% were A(H3), 1.2% were A(H1N1)pdm09, and 61.9% were A(unsubtyped)]; and 3.3% were positive for influenza B (Table 1). Cumulative influenza virus detections by type/subtype to date are as follows: 96.3% influenza A [49.5% A(H3), 1.7% A(H1N1)pdm09 and 48.8% A(unsubtyped)] and 3.7% influenza B (Table 1).
                          Detailed information on age and type/subtype was received for 3149 cases to date this season (Table 2). The proportions of cases by age group were as follows: 14.0% were < 5 years; 12.4% were between 5-19 years; 18.6% were between 20-44 years; 15.9% were between 45-64 years of age; 39.0% were ≥ 65 years.
                          The percentage of tests positive for RSV is stable at 8.7%. The percentage positive for rhinovirus continued to decline from 9.8% to 6.6%. Parainfluenza and coronavirus detections declined slightly (from 4.0% to 3.1% and from 4.2% to 3.7%, respectively). Other percentages of positive tests remained low: adenovirus 1.4%; hMPV 1.0% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
                          <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
                          by Provincial Laboratories, Canada, 2012-2013
                          </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
                          (December 9 to December 15, 2012)
                          </TH><TH id=ac9 colSpan=6>Cumulative
                          (August 26, 2012 to December 15, 2012)
                          </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
                          B
                          </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
                          B
                          </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
                          ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
                          </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
                          (Un S) Table 1 note*
                          </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">19</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">19</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">112</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">106</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">6</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">8</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">146</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">114</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">3</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">29</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">16</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">564</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">498</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">15</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">51</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">40</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">46</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">34</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">2</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">10</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">149</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">123</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">3</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">23</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">8</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">3</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">4</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">21</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">20</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">7</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">465</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">281</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">12</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">172</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">8</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">1166</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">819</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">37</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">310</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">27</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR></TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">762</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">81</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">681</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">21</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">1384</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">117</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">1267</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">42</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR></TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">3</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">11</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">4</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">4</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">0</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia">NS</ABBR></TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">1</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">1</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">1</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island">PE</ABBR></TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">3</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">7</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">7</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">0</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title=Newfoundland/Labrador>NL</ABBR></TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">5</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">5</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">10</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">3</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">7</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">0</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">1453</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">536</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">18</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">899</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">49</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">3425</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">1696</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">59</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">1670</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">132</TD></TR></TBODY></TABLE>
                          <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
                          reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
                          </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
                          (December 9 to December 15, 2012)
                          </TH><TH id=bc8 colSpan=5>Cumulative
                          (August 26, 2012 to December 15, 2012)
                          </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Five provinces have reported detailed case-by-case data since the beginning of the season (BC, AB, SK,MB and ON). Delays in the reporting of data may cause data to change retrospectively.</TD></TR></TFOOT><TBODY><TR><TH id=c_tbr1 headers=br1><5</TH><TD class=alignRight headers="br1 c_tbr1 bc1 bc2 bc3">140</TD><TD class=alignRight headers="br1 c_tbr1 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 c_tbr1 bc1 bc2 bc5">47</TD><TD class=alignRight headers="br1 c_tbr1 bc1 bc2 bc6">93</TD><TD class=alignRight headers="br1 c_tbr1 bc1 bc7">7</TD><TD class=alignRight headers="br1 c_tbr1 bc8 bc9 bc10">420</TD><TD class=alignRight headers="br1 c_tbr1 bc8 bc9 bc11">14</TD><TD class=alignRight headers="br1 c_tbr1 bc8 bc9 bc12">221</TD><TD class=alignRight headers="br1 c_tbr1 bc8 bc9 bc13">185</TD><TD class=alignRight headers="br1 c_tbr1 bc8 bc14">20</TD></TR><TR><TH id=br2 headers=br1>5-19</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">111</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">46</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">64</TD><TD class=alignRight headers="br1 br2 bc1 bc7">10</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">366</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">3</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">245</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">118</TD><TD class=alignRight headers="br1 br2 bc8 bc14">26</TD></TR><TR><TH id=br3 headers=br1>20-44</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">182</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">59</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">122</TD><TD class=alignRight headers="br1 br3 bc1 bc7">9</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">563</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">16</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">294</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">253</TD><TD class=alignRight headers="br1 br3 bc8 bc14">23</TD></TR><TR><TH id=br4 headers=br1>45-64</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">154</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">52</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">102</TD><TD class=alignRight headers="br1 br4 bc1 bc7">2</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">481</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">9</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">254</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">218</TD><TD class=alignRight headers="br1 br4 bc8 bc14">21</TD></TR><TR><TH id=br5 headers=br1>65+</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">464</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">2</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">131</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">331</TD><TD class=alignRight headers="br1 br5 bc1 bc7">17</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">1207</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">8</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">549</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">650</TD><TD class=alignRight headers="br1 br5 bc8 bc14">22</TD></TR><TR><TH id=br6 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">2</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">2</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">0</TD><TD class=alignRight headers="br1 br6 bc1 bc7">0</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">10</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">1</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">8</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">1</TD><TD class=alignRight headers="br1 br6 bc8 bc14">0</TD></TR><TR><TH id=br7 headers=br1>Total</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">1053</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">4</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">337</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">712</TD><TD class=alignRight headers="br1 br7 bc1 bc7">45</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">3047</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">51</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">1571</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">1425</TD><TD class=alignRight headers="br1 br7 bc8 bc14">112</TD></TR></TBODY></TABLE>

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                          Figure 4. Influenza tests reported and percentage of tests positive, Canada,
                          by report week, 2012-2013


                          Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
                          Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
                          Canada, by reporting week, 2012-2013


                          Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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                          Influenza strain characterizations

                          Since the start of the season, the National Microbiology Laboratory (NML) has antigenically characterized 125 influenza viruses [87 A(H3N2), 16 A(H1N1)pdm09 , and 22 influenza B]. The 87 influenza A(H3N2) viruses were antigenically similar to the vaccine strain A/Victoria/361/2011. The 16 A(H1N1)pdm09 viruses were antigenically similar to the vaccine strain A/California/07/09. Among the influenza B viruses, 18 were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) and four were similar to B/Brisbane/60/2008 (Victoria lineage; component of the 2011-2012 seasonal influenza vaccine) (Figure 6).
                          Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 125

                          Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
                          Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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                          Antiviral resistance

                          Since the beginning of the season, NML has tested 104 influenza viruses for resistance to oseltamivir, and 101 influenza viruses for resistance to zanamivir. All viruses tested were sensitive to oseltamivir and zanamivir. A total of 132 influenza A viruses were tested for amantadine resistance and all were resistant (Table 3).


                          <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">73</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">70</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">122</TD><TD class=alignCenter headers="cr2 cc9">122 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">13</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">13</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">10</TD><TD class=alignCenter headers="cr3 cc9">10</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">18</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">18</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">104</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">101</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">132</TD><TD class=alignCenter headers="cr5 cc9">132 (100%)</TD></TR></TBODY></TABLE>
                          Influenza-like Illness (ILI) Consultation Rate

                          The national influenza-like-illness (ILI) consultation rate in week 50 increased compared to the previous week: from 30.5 to 37.9 ILI consultations per 1,000 patient visits, which is within the expected level for this time of year (Figure 7). The highest consultation rates were observed in children 5-19 years of age (80.1/1,000) followed by children <5 years of age (72.7/1,000).
                          Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



                          Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
                          Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)

                          Pharmacy Surveillance

                          The Canadian antiviral prescription rate continued to increase in week 50 from 71.6 to 102.2 antiviral prescriptions per 100,000 new prescriptions dispensed. The current rate of 102.2/100,000 is in keeping with the current percentage of positive laboratory tests for influenza (24.2%).

                          Rates of 50-100/100,000 were observed during the peak period during the 2011-12 influenza season, when the percentage of positive influenza tests was between 18%-24% (data from April 2011 to present). In week 50, the antiviral prescription rate increased in all age categories, and was highest among children and seniors at 129.6/100,000 and 129.9/100,000, respectively.

                          Note: Pharmacy sales data are provided to the Public Health Agency of Canada by Rx Canada Inc. and sourced from major retail drug chains representing over 3,000 stores nationwide (excluding Nunavut) in 85% of Health Regions. Data provided include the number of new antiviral prescriptions (for Tamiflu and Relenza) and the total number of new prescriptions dispensed by Province/Territory and age group.

                          Severe Respiratory Illness Surveillance

                          Paediatric Influenza Hospitalizations and Deaths (IMPACT)

                          In week 50, 30 new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network: three from BC, six from AB, two from MB, eight from ON, and eleven from QC. Among the 29 cases identified with influenza A, 24 were A(unsubtyped) and 5 were A(H3N2). One case was identified with influenza B. The age distribution is as follows: five under 6 months of age, four between 6-23 months, ten aged 2-4 years, seven aged 5-9 years, and four aged 10-16 years. Two ICU admissions were reported this week, both in children 10-16 years of age with influenza A.

                          Since the start of the 2012-13 season, a total of 87 influenza-associated paediatric hospitalizations have been reported by the IMPACT network: 83 (95.4%) with influenza A [of which 17 (20.5%) were A(H3N2) and 66 (79.5%) were A(unsubtyped)], and four (4.6%) with influenza B. The distribution of cases by age group is as follows: 14 (16.1%) <6 months of age, 18 (20.7%) age 6-23 months, 25 (28.7%) age 2-4 years, 18 (20.7%) age 5-9 years, and 12 (13.8%) age 10-16 years. Seven of the 87 cases (8.0%) were admitted to the ICU. No deaths have been reported to date.
                          Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

                          Influenza Hospitalizations and Deaths (Aggregate Surveillance System)

                          In week 50, 33 new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network: three from BC, six from AB, two from SK, two from MB, eight from ON, and twelve from QC. Among the 32 cases identified with influenza A, 27 were A(unsubtyped) and 5 were A(H3N2). One case was identified with influenza B. The age distribution is as follows: six under 6 months of age, five between 6-23 months, ten aged 2-4 years, eight aged 5-9 years, and four aged 10-16 years. Two ICU admissions were reported this week, both in children 10-16 years of age with influenza A.

                          Since the start of the 2012-13 season, a total of 91 influenza-associated paediatric hospitalizations have been reported by the IMPACT network: 87 (95.6%) with influenza A [of which 17 (19.5%) were A(H3N2) and 70 (80.5%) were A(unsubtyped)], and four (4.4%) with influenza B. The distribution of cases by age group is as follows: 16 (17.6%) <6 months of age, 19 (20.9%) age 6-23 months, 25 (27.5%) age 2-4 years, 19 (20.9%) age 5-9 years, and 12 (13.2%) age 10-16 years. Seven of the 91 cases (7.7%) were admitted to the ICU. No deaths have been reported to date.

                          Note: The number of influenza-associated hospitalizations reported by the Aggregate Surveillance System may include cases reported by the IMPACT network. Note that the cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting. Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

                          .../
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                          "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
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                          • #14
                            Re: Canada FluWatch Weekly Reports 2012-2013 Season Weeks 51-52

                            Fluwatch Report: December 16 to December 29, 2012 (Weeks 51 & 52)

                            Posted 2013-01-04For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
                            <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w52_12/pdf/fw2012-51-52-eng.pdf">2012-2013 FluWatch report: December 16 to December 29, 2012 (Weeks 51 & 52) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

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                            Overall Influenza Summary
                            • Influenza activity in Canada continues to rise with increases in all indicators in weeks 51 and 52
                            • A total of 4632 laboratory detections of influenza were reported, of which 97.7% were for influenza A viruses, predominantly A(H3N2)
                            • 127 new influenza outbreaks were reported, 87 of which were in long-term care facilities
                            • 114 new paediatric influenza-associated hospitalizations were reported through the IMPACT network, and 176 hospitalizations including 15 deaths among adults ≥20 years of age were reported through Aggregate surveillance
                            • The ILI consultation rate increased, but remains within the expected range for this time of year.
                            • Similar to previous years, older adults (persons aged ≥65 years) are the most affected this season; with 41.3% of laboratory detections to date, increased outbreaks in long-term care facilities, higher hospitalization rates and a high proportion of antiviral prescriptions among those ≥75 years.
                            Influenza Activity (geographic spread) and Outbreaks

                            In week 51, two regions [in ON(1) and QC(1)] reported widespread activity and 18 regions [in BC(2), AB(3), SK(2), MB(1), ON(5), QC(3), NL(1) and PE(1)] reported localized activity. In week 52, five regions [in AB(2), ON(1), QC(1) and NL(1)] reported widespread activity and 17 regions [in BC(4), AB(1), SK(1), MB(2), ON(5), QC(2), NL(1) and PE(1)] reported localized activity. In week 52, no data was reported from Yukon (Figures 1 and 2). In weeks 51 and 52, 127 new influenza outbreaks were reported: 87 in long-term-care facilities, nine in hospitals, one in a school, and 30 in other facilities or communities (Figure 3).
                            Figure 1. Map of overall Influenza activity level by province and territory,
                            Canada, Week 52





                            Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
                            Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
                            Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


                            †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
                            * Total number of influenza surveillance regions in Canada
                            Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
                            Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


                            Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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                            Influenza and Other Respiratory Virus Detections

                            The percentage of positive influenza tests continued to increase from 24.2% in week 50 to 26.7% in week 51 and 31.1% in week 52 (Figure 4). Among the influenza viruses detected in weeks 51 and 52 (n=4632), 97.7% were positive for influenza A viruses [of which 25.7% were A(H3), 0.7% were A(H1N1)pdm09, and 73.6% were A(unsubtyped)]; and 2.3% were positive for influenza B (Table 1). Cumulative influenza virus detections by type/subtype to date are as follows: 97.1% influenza A [36.7% A(H3), 1.1% A(H1N1)pdm09 and 62.2% A(unsubtyped)] and 2.9% influenza B (Table 1).
                            Detailed information on age and type/subtype was received for 6888 cases to date this season (Table 2). The proportions of cases by age group were as follows: 13.6% were < 5 years; 10.1% were between 5-19 years; 16.5% were between 20-44 years; 15.8% were between 45-64 years of age; 43.9% were ≥ 65 years.
                            The percentage of tests positive for RSV continued to increase from 8.9% in week 50 to 9.3% in week 51 and 11.3% in week 52. The percentage of tests positive for rhinovirus declined from 7.3% in week 50 to 6.7% in week 51 and 4.8% in week 52. Parainfluenza and coronavirus detections declined slowly over the past two weeks, and were both at 2.4% in week 52. Other percentages of positive tests remained low in week 52: adenovirus 1.0%; hMPV 0.8% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
                            <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
                            by Provincial Laboratories, Canada, 2012-2013
                            </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
                            (December 16 to December 29, 2012)
                            </TH><TH id=ac9 colSpan=6>Cumulative
                            (August 26, 2012 to December 29, 2012)
                            </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
                            B
                            </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
                            B
                            </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
                            ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
                            </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
                            (Un S) Table 1 note*
                            </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">113</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">77</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">35</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">3</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">225</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">183</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">41</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">11</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">438</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">342</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">16</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">80</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">33</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">1006</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">866</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">32</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">108</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">73</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">154</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">109</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">45</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">9</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">303</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">232</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">3</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">68</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">17</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">55</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">52</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">6</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">76</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">23</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">53</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">13</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">1382</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">594</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">12</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">776</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">30</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">2548</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">1436</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">50</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">1062</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">56</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

                            </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">2290</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">5</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">2284</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">23</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">3673</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">1</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">122</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">3550</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">64</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

                            </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">21</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">17</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">3</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">32</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">20</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">5</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">7</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">1</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

                            </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">1</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">1</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">0</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

                            </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">11</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">11</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">18</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">18</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">1</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

                            </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">61</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">6</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">55</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">1</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">71</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">16</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">55</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">1</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">4525</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">1164</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">31</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">3330</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">107</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">7953</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">1</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">2916</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">91</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">4945</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">237</TD></TR></TBODY></TABLE>
                            <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
                            reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
                            </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
                            (December 23 to December 29, 2012)
                            </TH><TH id=bc8 colSpan=5>Cumulative
                            (August 26, 2012 to December 29, 2012)
                            </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1><5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">207</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">5</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">24</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">178</TD><TD class=alignRight headers="br1 br2 bc1 bc7">7</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">902</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">21</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">350</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">531</TD><TD class=alignRight headers="br1 br2 bc8 bc14">38</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">86</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">11</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">74</TD><TD class=alignRight headers="br1 br3 bc1 bc7">4</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">653</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">6</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">328</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">319</TD><TD class=alignRight headers="br1 br3 bc8 bc14">46</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">232</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">2</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">31</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">199</TD><TD class=alignRight headers="br1 br4 bc1 bc7">4</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">1102</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">23</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">441</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">638</TD><TD class=alignRight headers="br1 br4 bc8 bc14">33</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">234</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">22</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">212</TD><TD class=alignRight headers="br1 br5 bc1 bc7">5</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">1058</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">17</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">390</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">651</TD><TD class=alignRight headers="br1 br5 bc8 bc14">32</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">880</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">83</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">796</TD><TD class=alignRight headers="br1 br6 bc1 bc7">9</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">2985</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">16</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">1003</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">1966</TD><TD class=alignRight headers="br1 br6 bc8 bc14">39</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">2</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">2</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">25</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">2</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">20</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">3</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">1641</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">9</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">171</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">1461</TD><TD class=alignRight headers="br1 br8 bc1 bc7">29</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">6725</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">85</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">2532</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">4108</TD><TD class=alignRight headers="br1 br8 bc8 bc14">188</TD></TR></TBODY></TABLE>


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                            Figure 4. Influenza tests reported and percentage of tests positive, Canada,
                            by report week, 2012-2013


                            Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
                            Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
                            Canada, by reporting week, 2012-2013


                            Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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                            Influenza strain characterizations

                            During the 2012-13 season, the National Microbiology Laboratory (NML) has antigenically characterized 177 influenza viruses [136 A(H3N2), 17 A(H1N1)pdm09 , and 24 influenza B]. The 136 influenza A(H3N2) viruses were antigenically similar to the vaccine strain A/Victoria/361/2011. The 17 A(H1N1)pdm09 viruses were antigenically similar to the vaccine strain A/California/07/09. Among the influenza B viruses, 20 were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) and four were similar to B/Brisbane/60/2008 (Victoria lineage; component of the 2011-2012 seasonal influenza vaccine) (Figure 6).
                            Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 177

                            Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
                            Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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                            Antiviral resistance

                            During the 2012-13 season, NML has tested 128 influenza viruses for resistance to oseltamivir, and 127 influenza viruses for resistance to zanamivir. All viruses tested were sensitive to oseltamivir and zanamivir. A total of 149 influenza A viruses were tested for amantadine resistance and all were resistant (Table 3).


                            <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">97</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">96</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">138</TD><TD class=alignCenter headers="cr2 cc9">138 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">13</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">13</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">11</TD><TD class=alignCenter headers="cr3 cc9">11</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">18</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">18</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">128</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">127</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">149</TD><TD class=alignCenter headers="cr5 cc9">149 (100%)</TD></TR></TBODY></TABLE>
                            Influenza-like Illness (ILI) Consultation Rate

                            The national influenza-like-illness (ILI) consultation rate decreased from 36.8 ILI consultations per 1,000 patient visits in week 50 to 32.0 in week 51. The consultation rate increased to 66.3 in week 52; however due to holiday closures only 25% of sentinel physicians reported data. This rate is within the expected level for this time of year (Figure 7). In both week 51 and 52, the highest consultation rates were observed in children <5 years of age (121.2/1,000 in week 52) followed by children 5-19 years of age (90.3/1,000 in week 52).
                            Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



                            Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
                            Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)

                            Pharmacy Surveillance

                            The Canadian antiviral prescription rate continued to increase from 102.5 antiviral prescriptions per 100,000 new prescriptions dispensed in week 50 to 137.1 in week 51 and 300.8 in week 52. Rates of 50-100/100,000 were observed during the peak period during the 2011-12 influenza season, when the percentage of positive influenza tests was between 18%-24% (data from April 2011 to present). Although the current proportion of antiviral prescriptions of 300.8/100,000 is higher than the peak observed last year, it continues to follow the trend of an increasing percentage of positive laboratory tests for influenza. In week 52, the antiviral prescription rate increased in all age categories except infants, and was highest among seniors ≥75 years at 545.3/100,000.

                            Note: Pharmacy sales data are provided to the Public Health Agency of Canada by Rx Canada Inc. and sourced from major retail drug chains representing over 3,000 stores nationwide (excluding Nunavut) in 85% of Health Regions. Data provided include the number of new antiviral prescriptions (for Tamiflu and Relenza) and the total number of new prescriptions dispensed by Province/Territory and age group.

                            Severe Respiratory Illness Surveillance

                            Paediatric Influenza Hospitalizations and Deaths (IMPACT)

                            In weeks 51 and 52, 114 new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network: 9 from BC, 21 from AB, 5 from SK, one from MB, 46 from ON, and 32 from QC. Among the 110 cases identified with influenza A, 91 (82.7%) were A(unsubtyped) and 19 (17.3%) were A(H3N2). Four cases were identified with influenza B. The age distribution is as follows: 19 cases (16.7%) under 6 months of age, 26 (22.8%) between 6-23 months, 33 (28.9%) aged 2-4 years, 20 (17.5%) aged 5-9 years, and 16 (14.0%) aged 10-16 years. Fourteen ICU admissions were reported during this two week period, two cases between 6-23 months, six aged 2-4 years, two aged 5-9 years, and four aged 10-16 years.

                            Since the start of the 2012-13 season, a total of 206 influenza-associated paediatric hospitalizations have been reported by the IMPACT network: 198 (96.1%) with influenza A [of which 36 (18.2%) were A(H3N2) and 162 (81.8%) were A(unsubtyped)], and eight (3.9%) with influenza B. The distribution of cases by age group is as follows: 36 (17.5%) <6 months of age, 44 (21.4%) age 6-23 months, 58 (28.2%) age 2-4 years, 39 (18.9%) age 5-9 years, and 29 (14.1%) age 10-16 years. Twenty-three of the 206 cases (11.2%) were admitted to the ICU. No deaths have been reported to date.

                            Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

                            Influenza Hospitalizations and Deaths (Aggregate Surveillance System<SUP>*</SUP>)

                            In weeks 51 and 52, 241 laboratory confirmed influenza associated hospitalizations were reported in five provinces (AB, MB, ON, NL, PE); the majority of which were influenza A (97% 236/241). Of the 236 influenza A associated hospitalizations, 48% (114/236) were A(H3), 1.3% (3/236) were A(H1N1pdm09) and the remaining were A(unsubtyped).Half of the cases (51% 123/241) were aged 65+ and 16.6% (40/241) were aged between 0 and 4 years. Of the 86 cases with available data, 15 (17.4%) were admitted to the Intensive Care Unit (ICU). Sixteen deaths were reported in weeks 51 and 52, all in influenza A cases: one A(unsubtyped) aged 1-4 years; 15 in persons aged ≥65 years [(4 A(H3) and 11 A(unsubtyped)].

                            To date this season, 565 influenza-associated hospitalizations have been reported. The majority of cases have been influenza A (552/565; 97%). Approximately half of the cases (282/565; 49.9%) are ≥ 65 years of age. Of the 297 influenza A hospitalizations for which subtype was available, 95.6% (284/297) were due to A(H3) and 4.4% (13/297) were due to influenza A(H1N1)pdm09. Among the 173 cases with available data, there have been 26 hospitalisations for which admission to ICU was required, nine (34.6%) were persons ≥ 65 years of age. To date this season, 34 deaths have been reported: all in influenza A cases (13 H3; 21 unsubtyped). Of the 34 deaths, 88.2% (30/34) were persons aged ≥ 65 years of age, 5.9% (2/34) were adults aged 20-44 years, and 5.9% (2/34) were children aged 0-4 years.

                            * Note: The number of influenza-associated hospitalizations reported by the Aggregate Surveillance System may include cases reported by the IMPACT network. Note that the cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting. Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

                            .../
                            http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
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                            Comment


                            • #15
                              Re: Canada FluWatch Weekly Reports 2012-2013 Season Week 1

                              2012-2013 FluWatch report: December 30, 2012 to January 11, 2013 (Week 1)

                              Posted 2013-01-11For readers interested in the <ABBR title="Portable Document Format">PDF</ABBR> version, the document is available for downloading or viewing:
                              <A title="Flu Watch (Version PDF, 113 KB - 6 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/12-13/w01_13/pdf/fw2013-01-eng.pdf">2012-2013 FluWatch report: December 30, 2012 to January 11, 2013 (Week 1) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 113 <ABBR title=Kilobytes>KB</ABBR> - 6 pages)

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                              Overall Influenza Summary
                              • Although the percentage of positive laboratory tests for influenza declined slightly in week 01, more regions across Canada reported widespread and localized influenza activity and 107 new influenza outbreaks were reported.
                              • A total of 3864 laboratory detections of influenza were reported, of which 98.1% were for influenza A viruses, predominantly A(H3N2).
                              • 69 new paediatric influenza-associated hospitalizations were reported through the IMPACT network.
                              • 26 new adult influenza-associated hospitalizations were reported through the PCIRN-SOS network.
                              • The ILI consultation rate decreased, but is above the expected range for this time of year.
                              Influenza Activity (geographic spread) and Outbreaks

                              In week 01, 15 regions [in BC(2), AB(2), MB(1), ON(5), QC(2) and NL(3)] reported widespread activity and 20 regions [in BC(3), AB(3), SK(2), MB(3), ON(2), QC(3), NB(2), and NS(2)] reported localized activity (Figures 1 and 2). In week 01, 107 new influenza outbreaks were reported: 88 in long-term-care facilities, 5 in hospitals, one in a school, and 13 in other facilities or communities (Figure 3).
                              Figure 1. Map of overall Influenza activity level by province and territory,
                              Canada, Week 01





                              Note: Influenza activity levels, as represented on this map, are assigned and reported by Provincial and Territorial Ministries of Health, based on laboratory confirmations, sentinel ILI rates (see graphs and tables) and reported outbreaks. Please refer to detailed definitions on the last page. For areas where no data is reported, late reports from these provinces and territories will appear on the FluWatch website.
                              Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
                              Figure 2. Number of influenza surveillance regions<SUP title="sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in"></SUP> reporting widespread or localized influenza activity, Canada, by report week, 2012-2013 (N<SUP>*</SUP>=58)


                              †sub-regions within the province or territory as defined by the provincial/territorial epidemiologist. Graph may change as late returns come in.
                              * Total number of influenza surveillance regions in Canada
                              Text equivalent for figure 2Number of influenza surveillance regions reporting widespread or localized influenza activity, Canada, by report week, 2011-2012 (N=56)
                              Figure 3. Overall Number of Influenza Outbreaks, Canada, by Report Week, 2012-2013


                              Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2011-2012

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                              Influenza and Other Respiratory Virus Detections

                              The percentage of positive influenza tests decreased slightly from 34.5% in week 52 to 32.4% in week 01 (Figure 4). Among the influenza viruses detected in week 01 (n=3864), 98.1% were positive for influenza A viruses [of which 25.7% were A(H3), 1.1% were A(H1N1)pdm09, and 73.2% were A(unsubtyped)]; and 1.9% were positive for influenza B (Table 1). Cumulative influenza virus detections by type/subtype to date are as follows: 97.5% influenza A [33.2% A(H3), 1.2% A(H1N1)pdm09 and 65.6% A(unsubtyped)] and 2.5% influenza B (Table 1).
                              Detailed information on age and type/subtype was received for 10,867 cases to date this (Table 2). The proportions of cases by age group were as follows: 13.1% were < 5 years; 8.1% were between 5-19 years; 15.6% were between 20-44 years; 16.3% were between 45-64 years of age; 46.9% were ≥ 65 years.
                              The percentage of tests positive for RSV decreased slightly from 11.5% in week 52 to 10.2% in week 01. The percentage of tests positive for rhinovirus declined to 3.3% in week 01. Parainfluenza declined to 2.0% while coronavirus detections increased to 3.0% in week 01. Other percentages of positive tests remained low in week 52: adenovirus 0.6%; hMPV 0.8% (Figure 5). For more details, see the weekly Respiratory Virus Detections in Canada Report.
                              <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly & Cumulative numbers of positive influenza specimens
                              by Provincial Laboratories, Canada, 2012-2013
                              </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces</TH><TH id=ac1 colSpan=6>Weekly
                              (December 30, 2012 to January 5, 2013)
                              </TH><TH id=ac9 colSpan=6>Cumulative
                              (August 26, 2012 to January 5, 2013)
                              </TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=5 headers=ac1>Influenza A</TH><TH id=ac8 headers=ac1>Influenza
                              B
                              </TH><TH id=ac10 colSpan=5 headers=ac9>Influenza A</TH><TH id=ac16 headers=ac9>Influenza
                              B
                              </TH></TR><TR class=bg-colour-yellow><TH id=ac3 headers=ac2>A Total</TH><TH id=ac4 headers=ac2>A(H1)</TH><TH id=ac5 headers=ac2>A(H3)</TH><TH id=ac6 headers=ac2>Pand H1N1</TH><TH id=ac7 class=noWrap headers=ac2>A
                              ( <ABBR title=unsubtyped>Un S</ABBR>)Table 1 note*
                              </TH><TH headers="ac1 ac8">Total</TH><TH id=ac11 headers=ac10>A Total</TH><TH id=ac12 headers=ac10>A(H1)</TH><TH id=ac13 headers=ac10>A(H3)</TH><TH id=ac14 headers=ac10>Pand H1N1</TH><TH id=ac15 class=noWrap headers=ac10>A
                              (Un S) Table 1 note*
                              </TH><TH headers=ac16>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13>* Unsubtyped: The specimen was typed as influenza A, but no test for subtyping was performed. Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Note: Weekly data is based on week of positive lab detection. Cumulative data includes updates to previous weeks; due to reporting delays, the sum of weekly report totals do not add up to cumulative totals.</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=bg-colour-yellow headers=ar1><ABBR title="British Columbia ">BC</ABBR></TH><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac3">166</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac5">105</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">2</TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac7">59</TD><TD class=alignRight headers="ar1 ar2 ac1 ac8">9</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac11">391</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac13">316</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac14">5</TD><TD class=alignRight headers="ar1 ar2 ac9 ac10 ac15">70</TD><TD class=alignRight headers="ar1 ar2 ac9 ac16">20</TD></TR><TR><TH id=ar3 class=bg-colour-yellow headers=ar1><ABBR title=Alberta>AB</ABBR></TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">262</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">172</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">21</TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac7">69</TD><TD class=alignRight headers="ar1 ar3 ac1 ac8">11</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac11">1295</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac13">1112</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac14">65</TD><TD class=alignRight headers="ar1 ar3 ac9 ac10 ac15">118</TD><TD class=alignRight headers="ar1 ar3 ac9 ac16">85</TD></TR><TR><TH id=ar4 class=bg-colour-yellow headers=ar1><ABBR title=Saskatchewan>SK</ABBR></TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">109</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac5">56</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac7">52</TD><TD class=alignRight headers="ar1 ar4 ac1 ac8">8</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac11">412</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac13">288</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac14">4</TD><TD class=alignRight headers="ar1 ar4 ac9 ac10 ac15">120</TD><TD class=alignRight headers="ar1 ar4 ac9 ac16">25</TD></TR><TR><TH id=ar5 class=bg-colour-yellow headers=ar1><ABBR title=Manitoba>MB</ABBR></TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">48</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac5">19</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac7">29</TD><TD class=alignRight headers="ar1 ar5 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac11">124</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac13">42</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar5 ac9 ac10 ac15">82</TD><TD class=alignRight headers="ar1 ar5 ac9 ac16">15</TD></TR><TR><TH id=ar6 class=bg-colour-yellow headers=ar1><ABBR title=Ontario>ON</ABBR></TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">1286</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">579</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">10</TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac7">697</TD><TD class=alignRight headers="ar1 ar6 ac1 ac8">15</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac11">3852</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac13">2116</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac14">60</TD><TD class=alignRight headers="ar1 ar6 ac9 ac10 ac15">1676</TD><TD class=alignRight headers="ar1 ar6 ac9 ac16">71</TD></TR><TR><TH id=ar7 class=bg-colour-yellow headers=ar1><ABBR title=Quebec>QC</ABBR>

                              </TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">1705</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac6">3</TD><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac7">1702</TD><TD class=alignRight headers="ar1 ar7 ac1 ac8">28</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac11">6343</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac13">263</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac14">7</TD><TD class=alignRight headers="ar1 ar7 ac9 ac10 ac15">6073</TD><TD class=alignRight headers="ar1 ar7 ac9 ac16">100</TD></TR><TR><TH id=ar8 class=bg-colour-yellow headers=ar1><ABBR title="New Brunswick">NB</ABBR>

                              </TH><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac3">97</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac5">39</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac6">5</TD><TD class=alignRight headers="ar1 ar8 ac1 ac2 ac7">53</TD><TD class=alignRight headers="ar1 ar8 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac11">129</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac13">59</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac14">10</TD><TD class=alignRight headers="ar1 ar8 ac9 ac10 ac15">60</TD><TD class=alignRight headers="ar1 ar8 ac9 ac16">1</TD></TR><TR><TH id=ar9 class=bg-colour-yellow headers=ar1><ABBR title="Nova Scotia ">NS</ABBR>

                              </TH><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac3">12</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar9 ac1 ac2 ac7">12</TD><TD class=alignRight headers="ar1 ar9 ac1 ac8">2</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac11">13</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac13">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar9 ac9 ac10 ac15">13</TD><TD class=alignRight headers="ar1 ar9 ac9 ac16">2</TD></TR><TR><TH id=ar10 class=bg-colour-yellow headers=ar1><ABBR title="Prince Edward Island ">PE</ABBR>

                              </TH><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac3">4</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac5">3</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac6">1</TD><TD class=alignRight headers="ar1 ar10 ac1 ac2 ac7">0</TD><TD class=alignRight headers="ar1 ar10 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac11">22</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac13">21</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac14">1</TD><TD class=alignRight headers="ar1 ar10 ac9 ac10 ac15">0</TD><TD class=alignRight headers="ar1 ar10 ac9 ac16">1</TD></TR><TR><TH id=ar11 class=bg-colour-yellow headers=ar1><ABBR title="Newfoundland/Labrador ">NL</ABBR>

                              </TH><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac3">100</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac5">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac6">0</TD><TD class=alignRight headers="ar1 ar11 ac1 ac2 ac7">100</TD><TD class=alignRight headers="ar1 ar11 ac1 ac8">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac11">171</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac13">16</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac14">0</TD><TD class=alignRight headers="ar1 ar11 ac9 ac10 ac15">155</TD><TD class=alignRight headers="ar1 ar11 ac9 ac16">1</TD></TR><TR><TH id=ar12 class=bg-colour-yellow headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">3789</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac4">0</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac5">973</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac6">43</TD><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac7">2773</TD><TD class=alignRight headers="ar1 ar12 ac1 ac8">75</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac11">12752</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac12">0</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac13">4233</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac14">152</TD><TD class=alignRight headers="ar1 ar12 ac9 ac10 ac15">8367</TD><TD class=alignRight headers="ar1 ar12 ac9 ac16">321</TD></TR></TBODY></TABLE>
                              <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 2. Weekly & Cumulative numbers of positive influenza specimens by age groups
                              reported through case-based laboratory reporting, Canada, 2012-2013 Table 2 note*
                              </CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups</TH><TH id=bc1 colSpan=5>Weekly
                              (December 30, 2012 to January 5, 2013)
                              </TH><TH id=bc8 colSpan=5>Cumulative
                              (August 26, 2012 to January 5, 2013)
                              </TH></TR><TR class=bg-colour-yellow><TH id=bc2 colSpan=4 headers=bc1>Influenza A</TH><TH id=bc7 headers=bc1>B</TH><TH id=bc9 colSpan=4 headers=bc8>Influenza A</TH><TH id=bc14 headers=bc8>B</TH></TR><TR class=bg-colour-yellow><TH id=bc3 headers=bc2>A Total</TH><TH id=bc4 headers=bc2>Pandemic H1N1</TH><TH id=bc5 headers=bc2>A/H3N2</TH><TH id=bc6 headers=bc2>A unsubtyped</TH><TH headers="bc1 bc7">Total</TH><TH id=bc10 headers=bc9>A Total</TH><TH id=bc11 headers=bc9>Pandemic H1N1</TH><TH id=bc12 headers=bc9>A/H3N2</TH><TH id=bc13 headers=bc9>A unsubtyped</TH><TH headers=bc14>Total</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11>* Please note that this table reflects the number of specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported. Delays in the reporting of data may cause data to change retrospectively. </TD></TR></TFOOT><TBODY><TR><TH id=br2 headers=br1><5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">239</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">4</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">28</TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">207</TD><TD class=alignRight headers="br1 br2 bc1 bc7">17</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">1362</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">32</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">452</TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">878</TD><TD class=alignRight headers="br1 br2 bc8 bc14">63</TD></TR><TR><TH id=br3 headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">45</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">1</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc5">8</TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc6">36</TD><TD class=alignRight headers="br1 br3 bc1 bc7">8</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">821</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">9</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">377</TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">435</TD><TD class=alignRight headers="br1 br3 bc8 bc14">59</TD></TR><TR><TH id=br4 headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">255</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">5</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">31</TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">219</TD><TD class=alignRight headers="br1 br4 bc1 bc7">4</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">1656</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">37</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">618</TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">1001</TD><TD class=alignRight headers="br1 br4 bc8 bc14">42</TD></TR><TR><TH id=br5 headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">350</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">8</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">57</TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">285</TD><TD class=alignRight headers="br1 br5 bc1 bc7">3</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">1728</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">35</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">597</TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">1096</TD><TD class=alignRight headers="br1 br5 bc8 bc14">38</TD></TR><TR><TH id=br6 headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">1299</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">2</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">178</TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">1119</TD><TD class=alignRight headers="br1 br6 bc1 bc7">18</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">5039</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">20</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">1621</TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">3398</TD><TD class=alignRight headers="br1 br6 bc8 bc14">59</TD></TR><TR><TH id=br7 headers=br1>Unknown</TH><TD class=alignRight headers="br1 br7 bc1 bc2 bc3">3</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc4">0</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc5">2</TD><TD class=alignRight headers="br1 br7 bc1 bc2 bc6">1</TD><TD class=alignRight headers="br1 br7 bc1 bc7">0</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc10">48</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc11">2</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc12">44</TD><TD class=alignRight headers="br1 br7 bc8 bc9 bc13">2</TD><TD class=alignRight headers="br1 br7 bc8 bc14">0</TD></TR><TR><TH id=br8 headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">2191</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc4">20</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc5">304</TD><TD class=alignRight headers="br1 br8 bc1 bc2 bc6">1867</TD><TD class=alignRight headers="br1 br8 bc1 bc7">50</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">10654</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc11">135</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc12">3709</TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc13">6810</TD><TD class=alignRight headers="br1 br8 bc8 bc14">261</TD></TR></TBODY></TABLE>


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                              Figure 4. Influenza tests reported and percentage of tests positive, Canada,
                              by report week, 2012-2013


                              Text equivalent for figure 4Influenza tests reported and percentage of tests positive, Canada, by report week, 2011-2012
                              Figure 5. Percent positive influenza tests, compared to other respiratory viruses,
                              Canada, by reporting week, 2012-2013


                              Text equivalent for figure 5Percent positive influenza tests, compared to other respiratory viruses, Canada, by reporting week, 2011-2012

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                              Influenza strain characterizations

                              During the 2012-13 season, the National Microbiology Laboratory (NML) has antigenically characterized 193 influenza viruses [143 A(H3N2), 25 A(H1N1)pdm09 , and 25 influenza B]. The 143 influenza A(H3N2) viruses were antigenically similar to the vaccine strain A/Victoria/361/2011. The 25 A(H1N1)pdm09 viruses were antigenically similar to the vaccine strain A/California/07/09. Among the influenza B viruses, 21 were antigenically similar to the vaccine strain B/Wisconsin/01/2010 (Yamagata lineage) and four were similar to B/Brisbane/60/2008 (Victoria lineage; component of the 2011-2012 seasonal influenza vaccine) (Figure 6).
                              Figure 6. Influenza strain characterizations, Canada, 2012-2013, N = 193

                              Note:The recommended components for the 2012-2013 Northern Hemisphere influenza vaccine include: an A/Victoria/361/2011 (H3N2)-like virus; an A/California/7/2009 (H1N1)pdm09-like virus; and a B/Wisconsin/1/2010-like virus.
                              Text equivalent for figure 6Influenza strain characterizations, Canada, 2011-2012

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                              Antiviral resistance

                              During the 2012-13 season, NML has tested 178 influenza viruses for resistance to oseltamivir, and 176 influenza viruses for resistance to zanamivir. All viruses tested were sensitive to oseltamivir and zanamivir. A total of 243 influenza A viruses were tested for amantadine resistance and all were resistant (Table 3).


                              <TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2012-2013</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=cr1 rowSpan=2>Virus type and subtype</TH><TH id=cc1 colSpan=2>Oseltamivir</TH><TH id=cc4 colSpan=2>Zanamivir</TH><TH id=cc7 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=cc2 headers=cc1># tested</TH><TH id=cc3 headers=cc1># resistant (%)</TH><TH id=cc5 headers=cc4># tested</TH><TH id=cc6 headers=cc4># resistant (%)</TH><TH id=cc8 headers=cc7># tested</TH><TH id=cc9 headers=cc7># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=cr2 class="alignLeft bg-colour-blue" headers=cr1>A (H3N2)</TH><TD class=alignCenter headers="cr2 cc2">137</TD><TD class=alignCenter headers="cr2 cc3">0</TD><TD class=alignCenter headers="cr2 cc5">135</TD><TD class=alignCenter headers="cr2 cc6">0</TD><TD class=alignCenter headers="cr2 cc8">225</TD><TD class=alignCenter headers="cr2 cc9">225 (100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">18</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">18</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">18</TD><TD class=alignCenter headers="cr3 cc9">18</TD></TR><TR><TH id=cr4 class="alignLeft bg-colour-blue" headers=cr1>B</TH><TD class=alignCenter headers="cr4 cc2">23</TD><TD class=alignCenter headers="cr4 cc3">0</TD><TD class=alignCenter headers="cr4 cc5">23</TD><TD class=alignCenter headers="cr4 cc6">0</TD><TD class=alignCenter headers="cr4 cc8">NA <SUP>*</SUP></TD><TD class=alignCenter headers="cr4 cc9">NA <SUP>*</SUP></TD></TR><TR><TH id=cr5 class="alignLeft bg-colour-blue" headers=cr1>TOTAL</TH><TD class=alignCenter headers="cr5 cc2">178</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">176</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">243</TD><TD class=alignCenter headers="cr5 cc9">243 (100%)</TD></TR></TBODY></TABLE>
                              Influenza-like Illness (ILI) Consultation Rate

                              The national influenza-like-illness (ILI) consultation rate decreased from 67.1 ILI consultations per 1,000 patient visits in week 52 to 58.7 in week 01. This rate is above the expected level for this time of year, which is between 27.5 and 57.3 ILI consultations per 1,000 visits (Figure 7). In week 01, the highest consultation rates were observed in children 5-19 years of age (95.5/1,000) followed by children <5 years of age (94.1/1,000).
                              Figure 7. Influenza-like illness (ILI) consultation rates, Canada, by report week, 2012-2013 compared to 1996/97 through to 2011/12 seasons (with pandemic data suppressed)



                              Note: No data available for mean rate in previous years for weeks 19 to 39 (1996-1997 through 2002-2003 seasons). Delays in the reporting of data may cause data to change retrospectively.
                              Text equivalent for figure 7Influenza-like illness (ILI) consultation rates, Canada, by report week, 2011-2012 compared to 1996/97 through to 2010/11 seasons (with pandemic data suppressed)

                              Pharmacy Surveillance

                              The Canadian antiviral prescription rate continued to increase from 303.3 antiviral prescriptions per 100,000 new prescriptions dispensed in week 52 to 335.8 in week 01. Rates of 50-100/100,000 were observed during the peak period during the 2011-12 influenza season, when the percentage of positive influenza tests was between 18%-24% (data from April 2011 to present). Although the current proportion of antiviral prescriptions of 335.8/100,000 is higher than the peak observed last year, it continues to follow the trend of an increasing percentage of positive laboratory tests for influenza. In week 01, the antiviral prescription rate increased for adult and senior age groups, and decreased for infants and children. The highest rate was observed among seniors ≥65 years, at 667.3/100,000.

                              Note: Pharmacy sales data are provided to the Public Health Agency of Canada by Rx Canada Inc. and sourced from major retail drug chains representing over 3,000 stores nationwide (excluding Nunavut) in 85% of Health Regions. Data provided include the number of new antiviral prescriptions (for Tamiflu and Relenza) and the total number of new prescriptions dispensed by Province/Territory and age group.
                              Severe Respiratory Illness Surveillance

                              Paediatric Influenza Hospitalizations and Deaths (IMPACT)

                              In week 01, 69 new laboratory-confirmed influenza-associated paediatric (16 years of age and under) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network: 2 from BC, 9 from AB, 2 from SK, 2 from MB, 21 from ON, 31 from QC and 2 from NL.

                              Among the 66 cases identified with influenza A, 60 (90.9%) were A(unsubtyped), 4 (6.1%) were A(H3N2) and 2 (3.0%) were A(H1N1)pdm09. Three cases were identified with influenza B. The age distribution is as follows: 26 cases (37.7%) under 6 months of age, 12 (17.4%) between 6-23 months, 19 (27.5%) aged 2-4 years, 9 (13.0%) aged 5-9 years, and 3 (4.3%) aged 10-16 years. Four ICU admissions were reported during this week, one case between 6-23 months, two aged 2-4 years, and one aged 5-9 years.

                              Since the start of the 2012-13 season, a total of 342 influenza-associated paediatric hospitalizations have been reported by the IMPACT network: 330 (96.5%) with influenza A [of which 50 (15.2%) were A(H3N2), 2 (0.6%) were A(H1N1)pdm09 and 278 (84.2%) were A(unsubtyped)], and 12 (3.5%) with influenza B. The distribution of cases by age group is as follows: 77 (22.5%) <6 months of age, 69 (20.2%) age 6-23 months, 96 (28.1%) age 2-4 years, 62 (18.1%) age 5-9 years, and 38 (11.1%) age 10-16 years. Thirty-one of the 342 cases (9.1%) were admitted to the ICU. No deaths have been reported to date.

                              Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associate paediatric hospitalizations in Canada.

                              Adult Influenza Hospitalizations and Deaths (PCIRN)

                              In week 01, 26 new laboratory-confirmed influenza-associated adult (16 years of age and older) hospitalizations were reported by the PHAC/CIHR Influenza Research Network (PCIRN) Serious Outcomes Surveillance (SOS) network: 1 from AB, 1 from MB, 13 from ON, 7 from QC, 2 from NB and 2 from NS. The age distribution is as follows: 19 cases (73.1%) were ≥65 years of age, 5 cases (19.2%) were aged 45-64 years, and 2 cases (7.7%) were aged 20-44 years. Among the 25 cases identified with influenza A, 4% (1/25) were A(H3N2) and 96% (24/25) were A(unsubtyped). One case was identified with influenza B. One ICU admission was reported during the current week in a case ≥65 years of age with influenza A(unsubtyped). One death was reported in a case ≥65 years of age with influenza A(unsubtyped).

                              From November 4, 2012 to January 5, 2013, a total of 232 influenza-associated adult hospitalizations have been reported by PCIRN-SOS network: 220 (94.8%) with influenza A [of which 29 (13.2%) were A(H3N2), 2 (0.9%) were A(H1N1)pdm09 and 189 (85.9%) were A(unsubtyped)]; 4 (1.7%) with influenza B and 8 (3.4%) were unknown.

                              The distribution of cases by age group is as follows: 156 cases (76%) were ≥65 years of age, 53 cases (22.8%) were aged 45-64, 20 cases (8.6%) were aged 20-44 and 3 cases (1.3%) were aged <20 years. Twelve of the 232 cases (5.2%) were admitted to the ICU. Six deaths have been reported to date, all in cases with Influenza A(unsubtyped). Five deaths were in adults ≥65 years of age, and one was in a person 20-44 years of age.

                              Note: The number of hospitalizations reported through PCIRN represents a subset of all influenza-associate adult hospitalizations in Canada.

                              Provincial/Territorial Influenza Hospitalizations and Deaths (Aggregate Surveillance System<SUP>*</SUP>)

                              In week 01, 298 laboratory-confirmed influenza-associated hospitalizations were reported. Half of the cases (54% 162/298) were ≥65 years of age. Type and subtype information was available for 252 of the 298 cases. Of these 252 cases, the majority (96.4% 243/252) were influenza A and 3.6% (9/252) were influenza B. Of the 243 influenza A associated hospitalizations, 51.4% (125/243) were A(H3), 2.1% (5/243) were A(H1N1)pdm09 and the remaining were A(unsubtyped). Of the 138 cases with available data, 14.5% (20/138) were admitted to the Intensive Care Unit (ICU). Fourteen deaths were reported in week 01, all but one in persons ≥65 years of age. One death was reported in a case aged 0-4 years with influenza A. The cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting. Detailed clinical information (e.g. underlying medical conditions) is not known for these cases.

                              To date this season, 885 influenza-associated hospitalizations have been reported from all participating provinces. Half of the cases (51.3% 454/885) were ≥65 years of age, 16.9% (150/885) were adults aged 45-64 years and 15.1% (134/885) were children aged 0-4 years. Type and subtype information was available for 839 cases. Of these, 97% have been influenza A, predominately A(H3). Among the 287 cases with available data, there have been 45 hospitalisations for which admission to ICU was required, 14 (31.1%) were persons ≥65 years of age and 15 (33.3%) were in persons aged 45-64 years. To date this season, 51 deaths have been reported: 90.2% (46/51) were persons ≥65 years of age, 3.9% (2/51) were adults aged 20-44 years, and 5.9% (3/51) were children aged 0-4 years. The cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting. Detailed clinical information (e.g. underlying medical conditions) is not known for these cases.

                              * Note: The number of influenza-associated hospitalizations reported by the Aggregate Surveillance System may include cases reported by the IMPACT network. Note that the cause of death does not have to be attributable to influenza, a positive laboratory test is sufficient for reporting. Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, NS, and NB. Only hospitalizations that require intensive medical care are reported by SK. ICU admissions are not reported in ON.

                              .../
                              http://www.phac-aspc.gc.ca/fluwatch/.../index-eng.php
                              "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
                              -Nelson Mandela

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