FluWatch report: November 10 to 16, 2013 (Week 46)
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Overall Summary
- Influenza activity in Canada continued to increase for the fourth week in a row, indicating that the 2013-14 season has started.
- Laboratory detections of influenza continued to increase, primarily influenza A.
- Two influenza outbreaks in long-term care facilities were reported in week 46, and four regions reported localized influenza/ILI activity.
- Both paediatric and adult hospitalizations with influenza continued to be reported in week 46.
- The ILI consultation rate has been stable over the past four weeks.
In week 46, three regions in ON(2) and QC(1) reported localized activity and 13 regions (in BC(1), AB(2), SK(1), ON(4), QC(4) and NB(1)) reported sporadic activity (Figure 1).
Figure 1. Map of overall influenza/ILI activity level by province and territory, Canada, Week 46
Note: Influenza/ILI 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 and reported outbreaks. Please refer to detailed definitions at the end of the report. Maps from previous weeks, including any retrospective updates, are available on the FluWatch website.
Text equivalent for figure 1Map of overall Influenza activity level by province and territory, Canada
Influenza and Other Respiratory Virus Detections
The number of positive influenza tests continued to increase, from 42 in week 45 to 63 in week 46, bringing the percentage of positive influenza tests to 2.6%, driven predominantly by detections of influenza A (Figure 2). Cumulative influenza virus detections by type/subtype to date have been predominantly influenza A (81%) with more A(H1N1)pdm09 identified compared to A(H3) among those subtyped (Table 1). Detailed information on age and type/subtype has been received for 156 cases to date this season. Adults 45-64 years of age represent 36% of cases to date (Table 2).
Figure 2. Number of positive influenza tests and percentage of tests positive, by type, subtype and report week, Canada, 2013-14
Text equivalent for figure 2Number of positive influenza tests and percentage of tests positive, by type, subtype and report week, Canada, 2013-14
In week 46, the number of positive tests for parainfluenza and RSV continued their slow increase. Despite an increasing number of tests performed, positive tests for rhinovirus have declined over the past five weeks. Rhinovirus and parainfluenza remained the two predominant viruses detected in week 46 (Figure 3).
For more details, see the weekly Respiratory Virus Detections in Canada Report.
Figure 3. Number of positive laboratory tests for other respiratory viruses by report week, Canada, 2013-14
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RSV: Respiratory syncytial virus; hMPV: Human metapneumovirus
Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2013-2014
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 1: Weekly and cumulative numbers of positive influenza specimens
by type, subtype and province, Canada, 2013-14
</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces <SUP>1</SUP></TH><TH id=ac1 colSpan=5>Weekly
(November 10 to November 16, 2013)
</TH><TH id=ac8 colSpan=5>Cumulative
(August 25, 2013 to November 16, 2013)
</TH></TR><TR class=bg-colour-yellow><TH id=ac2 colSpan=4 headers=ac1>Influenza A</TH><TH id=ac7 headers=ac1>B</TH><TH id=ac9 colSpan=4 headers=ac8>Influenza A</TH><TH id=ac14 headers=ac8>B</TH></TR><TR class=bg-colour-grey-light><TH id=ac3 headers="ac1 ac2">A Total</TH><TH id=ac4 class=lightred headers="ac1 ac2">A(H1)pdm09</TH><TH id=ac5 class=lightred headers="ac1 ac2">A(H3)</TH><TH id=ac6 class=lightred headers="ac1 ac2">A(UnS)</TH><TH class=alignCenter headers="ac1 ac7">B Total</TH><TH id=ac10 headers="ac8 ac9">A Total</TH><TH id=ac11 class=lightred headers="ac8 ac9">A(H1)pdm09</TH><TH id=ac12 class=lightred headers="ac8 ac9">A(H3)</TH><TH id=ac13 class=lightred headers="ac8 ac9">A(UnS)</TH><TD class=alignCenter headers="ac8 ac14">B Total</TD></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=11><SUP>1 </SUP>Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Cumulative data includes updates to previous weeks.
<SUP>2 </SUP>Percentage of tests positive for sub-types of influenza A are a percentage of all influenza A detections.
UnS: unsubtyped: The specimen was typed as influenza A, but no result for subtyping was available.
</TD></TR></TFOOT><TBODY><TR><TH id=ar2 class=alignLeft headers=ar1>BC</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">2 </TD><TD class=alignRight headers="ar1 ar2 ac1 ac2 ac6">1 </TD><TD class=alignRight headers="ar1 ar2 ac1 ac7">1 </TD><TD class=alignRight headers="ar1 ar2 ac8 ac9 ac10">10 </TD><TD class=alignRight headers="ar1 ar2 ac8 ac9 ac11">3 </TD><TD class=alignRight headers="ar1 ar2 ac8 ac9 ac12">5 </TD><TD class=alignRight headers="ar1 ar2 ac8 ac9 ac13">2 </TD><TD class=alignRight headers="ar1 ar2 ac8 ac14">4 </TD></TR><TR><TH id=ar3 class=alignLeft headers=ar1>AB</TH><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac3">18 </TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac4">17 </TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac5">1 </TD><TD class=alignRight headers="ar1 ar3 ac1 ac2 ac6">0 </TD><TD class=alignRight headers="ar1 ar3 ac1 ac7">0 </TD><TD class=alignRight headers="ar1 ar3 ac8 ac9 ac10">48 </TD><TD class=alignRight headers="ar1 ar3 ac8 ac9 ac11">40 </TD><TD class=alignRight headers="ar1 ar3 ac8 ac9 ac12">8 </TD><TD class=alignRight headers="ar1 ar3 ac8 ac9 ac13">0 </TD><TD class=alignRight headers="ar1 ar3 ac8 ac14">12 </TD></TR><TR><TH id=ar4 class=alignLeft headers=ar1>SK</TH><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac3">3 </TD><TD class=alignRight headers="ar1 ar4 ac1 ac2 ac4">3 </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 ac7">0 </TD><TD class=alignRight headers="ar1 ar4 ac8 ac9 ac10">8 </TD><TD class=alignRight headers="ar1 ar4 ac8 ac9 ac11">5 </TD><TD class=alignRight headers="ar1 ar4 ac8 ac9 ac12">0 </TD><TD class=alignRight headers="ar1 ar4 ac8 ac9 ac13">3 </TD><TD class=alignRight headers="ar1 ar4 ac8 ac14">0 </TD></TR><TR><TH id=ar5 class=alignLeft headers=ar1>MB</TH><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac3">1 </TD><TD class=alignRight headers="ar1 ar5 ac1 ac2 ac4">1 </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 ac7">0 </TD><TD class=alignRight headers="ar1 ar5 ac8 ac9 ac10">4 </TD><TD class=alignRight headers="ar1 ar5 ac8 ac9 ac11">4 </TD><TD class=alignRight headers="ar1 ar5 ac8 ac9 ac12">0 </TD><TD class=alignRight headers="ar1 ar5 ac8 ac9 ac13">0 </TD><TD class=alignRight headers="ar1 ar5 ac8 ac14">1 </TD></TR><TR><TH id=ar6 class=alignLeft headers=ar1>ON</TH><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac3">20 </TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac4">13 </TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac5">4 </TD><TD class=alignRight headers="ar1 ar6 ac1 ac2 ac6">3 </TD><TD class=alignRight headers="ar1 ar6 ac1 ac7">1 </TD><TD class=alignRight headers="ar1 ar6 ac8 ac9 ac10">60 </TD><TD class=alignRight headers="ar1 ar6 ac8 ac9 ac11">27 </TD><TD class=alignRight headers="ar1 ar6 ac8 ac9 ac12">23 </TD><TD class=alignRight headers="ar1 ar6 ac8 ac9 ac13">10 </TD><TD class=alignRight headers="ar1 ar6 ac8 ac14">8 </TD></TR><TR><TH id=ar7 class=alignLeft headers=ar1>QC</TH><TD class=alignRight headers="ar1 ar7 ac1 ac2 ac3">5 </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">5 </TD><TD class=alignRight headers="ar1 ar7 ac1 ac7">10 </TD><TD class=alignRight headers="ar1 ar7 ac8 ac9 ac10">21 </TD><TD class=alignRight headers="ar1 ar7 ac8 ac9 ac11">0 </TD><TD class=alignRight headers="ar1 ar7 ac8 ac9 ac12">0 </TD><TD class=alignRight headers="ar1 ar7 ac8 ac9 ac13">21 </TD><TD class=alignRight headers="ar1 ar7 ac8 ac14">12 </TD></TR><TR><TH id=ar8 class=alignLeft headers=ar1>NB</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 ac7">0 </TD><TD class=alignRight headers="ar1 ar8 ac8 ac9 ac10">2 </TD><TD class=alignRight headers="ar1 ar8 ac8 ac9 ac11">1 </TD><TD class=alignRight headers="ar1 ar8 ac8 ac9 ac12">1 </TD><TD class=alignRight headers="ar1 ar8 ac8 ac9 ac13">0 </TD><TD class=alignRight headers="ar1 ar8 ac8 ac14">0 </TD></TR><TR><TH id=ar9 class=alignLeft headers=ar1>NS</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 ac7">0 </TD><TD class=alignRight headers="ar1 ar9 ac8 ac9 ac10">0 </TD><TD class=alignRight headers="ar1 ar9 ac8 ac9 ac11">0 </TD><TD class=alignRight headers="ar1 ar9 ac8 ac9 ac12">0 </TD><TD class=alignRight headers="ar1 ar9 ac8 ac9 ac13">0 </TD><TD class=alignRight headers="ar1 ar9 ac8 ac14">0 </TD></TR><TR><TH id=ar10 class=alignLeft headers=ar1>PE</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 ac7">0 </TD><TD class=alignRight headers="ar1 ar10 ac8 ac9 ac10">0 </TD><TD class=alignRight headers="ar1 ar10 ac8 ac9 ac11">0 </TD><TD class=alignRight headers="ar1 ar10 ac8 ac9 ac12">0 </TD><TD class=alignRight headers="ar1 ar10 ac8 ac9 ac13">0 </TD><TD class=alignRight headers="ar1 ar10 ac8 ac14">0 </TD></TR><TR><TH id=ar11 class=alignLeft headers=ar1>NL</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 ac7">0 </TD><TD class=alignRight headers="ar1 ar11 ac8 ac9 ac10">1 </TD><TD class=alignRight headers="ar1 ar11 ac8 ac9 ac11">0 </TD><TD class=alignRight headers="ar1 ar11 ac8 ac9 ac12">0 </TD><TD class=alignRight headers="ar1 ar11 ac8 ac9 ac13">1 </TD><TD class=alignRight headers="ar1 ar11 ac8 ac14">0 </TD></TR><TR><TH id=ar12 class=alignLeft headers=ar1>Canada</TH><TD class=alignRight headers="ar1 ar12 ac1 ac2 ac3">51 </TD><TD class="alignRight lightred" headers="ar1 ar12 ac1 ac2 ac4">34 </TD><TD class="alignRight lightred" headers="ar1 ar12 ac1 ac2 ac5">8 </TD><TD class="alignRight lightred" headers="ar1 ar12 ac1 ac2 ac6">9 </TD><TD class=alignRight headers="ar1 ar12 ac1 ac7">12 </TD><TD class=alignRight headers="ar1 ar12 ac8 ac9 ac10">154 </TD><TD class="alignRight lightred" headers="ar1 ar12 ac8 ac9 ac11">80 </TD><TD class="alignRight lightred" headers="ar1 ar12 ac8 ac9 ac12">37 </TD><TD class="alignRight lightred" headers="ar1 ar12 ac8 ac9 ac13">37 </TD><TD class=alignRight headers="ar1 ar12 ac8 ac14">37 </TD></TR><TR><TH id=ar13 class=alignLeft headers=ar1>Percentage<SUP>2</SUP></TH><TD class=alignRight headers="ar1 ar13 ac1 ac2 ac3">81.0% </TD><TD class="alignRight lightred" headers="ar1 ar13 ac1 ac2 ac4">66.7% </TD><TD class="alignRight lightred" headers="ar1 ar13 ac1 ac2 ac5">15.7% </TD><TD class="alignRight lightred" headers="ar1 ar13 ac1 ac2 ac6">17.6% </TD><TD class=alignRight headers="ar1 ar13 ac1 ac7">19.0% </TD><TD class=alignRight headers="ar1 ar13 ac8 ac9 ac10">80.6% </TD><TD class="alignRight lightred" headers="ar1 ar13 ac8 ac9 ac11">51.9% </TD><TD class="alignRight lightred" headers="ar1 ar13 ac8 ac9 ac12">24.0% </TD><TD class="alignRight lightred" headers="ar1 ar13 ac8 ac9 ac13">24.0% </TD><TD class=alignRight headers="ar1 ar13 ac8 ac14">19.4% </TD></TR></TBODY></TABLE>
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 2. Weekly and cumulative numbers of positive influenza specimens by type, subtype and age-group reported through case-based laboratory reporting<SUP>3</SUP>, Canada, 2013-14</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=br1 rowSpan=3>Age groups (years)</TH><TH id=bc1 colSpan=5>Weekly
(November 10 to November 16, 2013)
</TH><TH id=bc8 colSpan=7>Cumulative
(August 25, 2013 to November 16, 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><TH id=bc15 colSpan=2 headers=bc8>Influenza A and B</TH></TR><TR class=bg-colour-grey-light><TH id=bc3 headers="bc1 bc2">A Total</TH><TH id=bc4 class="lightred " headers="bc1 bc2">A(H1) pdm09</TH><TH id=bc5 class="lightred " headers="bc1 bc2">A(H3)</TH><TH id=bc6 class="lightred " headers="bc1 bc2">A (UnS)</TH><TD class=alignCenter headers="bc1 bc7">Total</TD><TH id=bc10 headers="bc8 bc9">A Total</TH><TH id=bc11 class="lightred " headers="bc8 bc9">A(H1) pdm09</TH><TH id=bc12 class="lightred " headers="bc8 bc9">A(H3)</TH><TH id=bc13 class="lightred " headers="bc8 bc9">A (UnS)</TH><TD class=alignCenter headers="bc8 bc14">Total</TD><TH id=bc16 headers="bc8 bc15">#</TH><TH id=bc17 headers="bc8 bc15">%</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=13><SUP>2 </SUP>Percentage of tests positive for sub-types of influenza A are a percentage of all influenza A detections.
<SUP>3 </SUP>Table 2 includes specimens for which demographic information was reported. These represent a subset of all positive influenza cases reported.
UnS: unsubtyped: The specimen was typed as influenza A, but no result for subtyping was available.
</TD></TR></TFOOT><TBODY><TR><TH id=br2 class=alignLeft headers=br1><5</TH><TD class=alignRight headers="br1 br2 bc1 bc2 bc3">5 </TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc4">3 </TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc5">0 </TD><TD class=alignRight headers="br1 br2 bc1 bc2 bc6">2 </TD><TD class=alignRight headers="br1 br2 bc1 bc7">3 </TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc10">20 </TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc11">11 </TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc12">3 </TD><TD class=alignRight headers="br1 br2 bc8 bc9 bc13">6 </TD><TD class=alignRight headers="br1 br2 bc8 bc14">8 </TD><TD class=alignRight headers="br1 br2 bc8 bc15 bc16">28 </TD><TD class=alignRight headers="br1 br2 bc8 bc15 bc17">17.9% </TD></TR><TR><TH id=br3 class=alignLeft headers=br1>5-19</TH><TD class=alignRight headers="br1 br3 bc1 bc2 bc3">7 </TD><TD class=alignRight headers="br1 br3 bc1 bc2 bc4">7 </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">1 </TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc10">14 </TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc11">10 </TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc12">1 </TD><TD class=alignRight headers="br1 br3 bc8 bc9 bc13">3 </TD><TD class=alignRight headers="br1 br3 bc8 bc14">4 </TD><TD class=alignRight headers="br1 br3 bc8 bc15 bc16">18 </TD><TD class=alignRight headers="br1 br3 bc8 bc15 bc17">11.5% </TD></TR><TR><TH id=br4 class=alignLeft headers=br1>20-44</TH><TD class=alignRight headers="br1 br4 bc1 bc2 bc3">7 </TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc4">5 </TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc5">0 </TD><TD class=alignRight headers="br1 br4 bc1 bc2 bc6">2 </TD><TD class=alignRight headers="br1 br4 bc1 bc7">0 </TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc10">27 </TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc11">16 </TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc12">4 </TD><TD class=alignRight headers="br1 br4 bc8 bc9 bc13">7 </TD><TD class=alignRight headers="br1 br4 bc8 bc14">3 </TD><TD class=alignRight headers="br1 br4 bc8 bc15 bc16">30 </TD><TD class=alignRight headers="br1 br4 bc8 bc15 bc17">19.2% </TD></TR><TR><TH id=br5 class=alignLeft headers=br1>45-64</TH><TD class=alignRight headers="br1 br5 bc1 bc2 bc3">10 </TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc4">7 </TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc5">2 </TD><TD class=alignRight headers="br1 br5 bc1 bc2 bc6">1 </TD><TD class=alignRight headers="br1 br5 bc1 bc7">2 </TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc10">47 </TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc11">25 </TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc12">14 </TD><TD class=alignRight headers="br1 br5 bc8 bc9 bc13">8 </TD><TD class=alignRight headers="br1 br5 bc8 bc14">9 </TD><TD class=alignRight headers="br1 br5 bc8 bc15 bc16">56 </TD><TD class=alignRight headers="br1 br5 bc8 bc15 bc17">35.9% </TD></TR><TR><TH id=br6 class=alignLeft headers=br1>65+</TH><TD class=alignRight headers="br1 br6 bc1 bc2 bc3">5 </TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc4">1 </TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc5">0 </TD><TD class=alignRight headers="br1 br6 bc1 bc2 bc6">4 </TD><TD class=alignRight headers="br1 br6 bc1 bc7">2 </TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc10">16 </TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc11">5 </TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc12">4 </TD><TD class=alignRight headers="br1 br6 bc8 bc9 bc13">7 </TD><TD class=alignRight headers="br1 br6 bc8 bc14">8 </TD><TD class=alignRight headers="br1 br6 bc8 bc15 bc16">24 </TD><TD class=alignRight headers="br1 br6 bc8 bc15 bc17">15.4% </TD></TR><TR><TH id=br7 class=alignLeft 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><TD class=alignRight headers="br1 br7 bc8 bc15 bc16">0 </TD><TD class=alignRight headers="br1 br7 bc8 bc15 bc17">0.0% </TD></TR><TR><TH id=br8 class=alignLeft headers=br1>Total</TH><TD class=alignRight headers="br1 br8 bc1 bc2 bc3">34 </TD><TD class="alignRight lightred" headers="br1 br8 bc1 bc2 bc4">23 </TD><TD class="alignRight lightred" headers="br1 br8 bc1 bc2 bc5">2 </TD><TD class="alignRight lightred" headers="br1 br8 bc1 bc2 bc6">9 </TD><TD class=alignRight headers="br1 br8 bc1 bc7">8 </TD><TD class=alignRight headers="br1 br8 bc8 bc9 bc10">124 </TD><TD class="alignRight lightred" headers="br1 br8 bc8 bc9 bc11">67 </TD><TD class="alignRight lightred" headers="br1 br8 bc8 bc9 bc12">26 </TD><TD class="alignRight lightred" headers="br1 br8 bc8 bc9 bc13">31 </TD><TD class=alignRight headers="br1 br8 bc8 bc14">32 </TD><TD class=alignRight headers="br1 br8 bc8 bc15 bc16">156 </TD><TD class=alignRight headers="br1 br8 bc8 bc15 bc17">100.0% </TD></TR><TR><TH id=br9 class=alignLeft headers=br1>Percentage<SUP>2</SUP></TH><TD class=alignRight headers="br1 br9 bc1 bc2 bc3">81.0% </TD><TD class="alignRight lightred" headers="br1 br9 bc1 bc2 bc4">67.6% </TD><TD class="alignRight lightred" headers="br1 br9 bc1 bc2 bc5">5.9% </TD><TD class="alignRight lightred" headers="br1 br9 bc1 bc2 bc6">26.5% </TD><TD class=alignRight headers="br1 br9 bc1 bc7">19.0% </TD><TD class=alignRight headers="br1 br9 bc8 bc9 bc10">79.5% </TD><TD class="alignRight lightred" headers="br1 br9 bc8 bc9 bc11">54.0% </TD><TD class="alignRight lightred" headers="br1 br9 bc8 bc9 bc12">21.0% </TD><TD class="alignRight lightred" headers="br1 br9 bc8 bc9 bc13">25.0% </TD><TD class=alignRight headers="br1 br9 bc8 bc14">20.5% </TD><TD class=alignRight></TD><TD class=alignRight></TD></TR></TBODY></TABLE>
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Influenza Strain Characterizations
During the 2013-2014 influenza season, the National Microbiology Laboratory (NML) has antigenically characterized 20 influenza viruses [four A(H3N2), five A(H1N1)pdm09 and 11 influenza B]. Sixteen of the 20 viruses were similar to the strains recommended by the WHO for the 2013-14 seasonal influenza vaccine; four influenza B viruses were similar to the strain recommended by the WHO for the 2011-12 vaccine (Figure 4).
Figure 4. Influenza strain characterizations, Canada, 2013-14, N = 20
The NML receives a proportion of the number of influenza positive specimens from provincial laboratories for strain characterization and antiviral resistance testing. Characterization data reflect the results of haemagglutination inhibition (HAI) testing compared to the reference influenza strains recommended by WHO
.The recommended components for the 2013-2014 northern hemisphere trivalent influenza vaccine include: an A/California/7/2009 (H1N1)pdm09-like virus, an A(H3N2) virus antigenically like the cell-propagated prototype virus A/Victoria/361/2011b (e.g. A/Texas/50/2012), and a B/Massachusetts/2/2012-like virus (Yamagata lineage).
Text equivalent for figure 4Influenza strain characterizations, Canada, 2013-2014, N =3
Antiviral Resistance
During the 2013-2014 influenza season, NML has tested 19 influenza viruses for resistance to oseltamivir and zanamivir, and all were sensitive. Eight 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, 2013-2014</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">4</TD><TD class=alignCenter headers="cr2 cc9">4(100%)</TD></TR><TR><TH id=cr3 class="alignLeft bg-colour-blue" headers=cr1>A (H1N1)</TH><TD class=alignCenter headers="cr3 cc2">5</TD><TD class=alignCenter headers="cr3 cc3">0</TD><TD class=alignCenter headers="cr3 cc5">5</TD><TD class=alignCenter headers="cr3 cc6">0</TD><TD class=alignCenter headers="cr3 cc8">4</TD><TD class=alignCenter headers="cr3 cc9">4(100%)</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">19</TD><TD class=alignCenter headers="cr5 cc3">0</TD><TD class=alignCenter headers="cr5 cc5">19</TD><TD class=alignCenter headers="cr5 cc6">0</TD><TD class=alignCenter headers="cr5 cc8">8</TD><TD class=alignCenter headers="cr5 cc9">8(100%)</TD></TR></TBODY></TABLE>
Influenza-like Illness (ILI) Consultation Rate
The national influenza-like-illness (ILI) consultation rate decreased slightly from 19.9/1,000 in week 45 to 16.9/1,000 in week 46, but was similar to the previous three weeks (Figure 5).
Figure 5. Influenza-like-illness (ILI) consultation rates by report week, compared to the 1996-97 through to 2012-13 seasons (with pandemic data suppressed), Canada, 2013-2014
Note: No data available for mean rate for weeks 19 to 39 for the 1996-1997 through 2002-2003 seasons. Delays in the reporting of data may cause data to change retrospectively. The calculation of the average ILI consultation rate over 17 seasons was aligned with influenza activity in each season. In BC, AB, and SK, data is compiled by a provincial sentinel surveillance program for reporting to FluWatch. The number of sentinel physicians in each province or territory is as follows: BC(21), AB(80), SK(11), MB(18), ON(169), QC(14), NB(29), NS(26), PE(4), NL(16), NU(1), NT(14), YT(13). Not all sentinel physicians report every week.
Text equivalent for figure 5Influenza-like-illness (ILI) consultation rates by report week, compared to the 1996-97 through to 2012-13 seasons (with pandemic data suppressed), Canada, 2013-2014
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Influenza Outbreak Surveillance
Two new influenza outbreaks in long-term care facilities were reported in week 46 (Figure 6).
Figure 6. Overall number of new influenza outbreaks by report week, Canada, 2013-2014
1 All provinces and territories except NU report outbreaks in long-term care facilities. All provinces and territories with the exception of NU and QC report outbreaks in hospitals. Outbreaks of influenza or influenza-like-illness in other facilities are reported to FluWatch but reporting varies between jurisdictions. Outbreak definitions are included at the end of the report.
Text equivalent for figure 6 Overall number of new influenza outbreaks by report week, Canada, 2013-2014
Pharmacy Surveillance
Pharmacy surveillance for sales of influenza antivirals has not yet begun for the 2013-14 influenza season (Figure 7).
Figure 7. Proportion of prescription sales for influenza antivirals by age-group and week, Canada, 2013-14
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. Age-groups: Infant: 0-2y, Child: 2-18y; Adult: 19-64y, Senior: ≥65y.
Text equivalent for figure 7Proportion of prescription sales for influenza antivirals by age-group and week, Canada, 2013-14
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Sentinel Hospital Influenza Surveillance
Paediatric Influenza Hospitalizations and Deaths (IMPACT)
In week 46, two new laboratory-confirmed influenza-associated paediatric (≤16 years of age) hospitalizations were reported by the Immunization Monitoring Program Active (IMPACT) network: one child 2-4 years of age and one 10-16 years of age, both with influenza A(H1N1)pdm09 (Figure 8a).
To date this season, a total of 10 influenza-associated paediatric hospitalizations have been reported by the IMPACT network (Table 4). One ICU admission was required in a child 2-4 years of age with influenza B. No deaths have been reported (Figure 9a).
Note: The number of hospitalizations reported through IMPACT represents a subset of all influenza-associated paediatric hospitalizations in Canada. Delays in the reporting of data may cause data to change retrospectively.
Adult Influenza Hospitalizations and Deaths (PCIRN)
Active surveillance of laboratory-confirmed influenza-associated adult (≥16 years of age) hospitalizations reported by the PHAC/CIHR Influenza Research Network (PCIRN) Serious Outcomes Surveillance (SOS) network began on November 15th 2013. Two new hospitalizations were reported in week 46, both adults 20-44 years of age with influenza A. No ICU admissions or deaths were reported in week 46 (Figure 8b).
To date this season, 11 influenza-associated hospitalizations have been reported by the PCIRN-SOS network, all with influenza A. The majority (64%) have been adults over 45 years of age (Table 5). ICU admission was required for one hospitalization and no deaths have been reported (Figure 9b).
Note: The number of hospitalizations reported through PCIRN represents a subset of all influenza-associated adult hospitalizations in Canada. Delays in the reporting of data may cause data to change retrospectively.
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 4 - Cumulative numbers of paediatric hospitalizations with influenza reported by the IMPACT network, Canada, 2013-14</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=dr1 rowSpan=3>Age groups </TH><TH id=dc1 colSpan=6>Cumulative (Aug. 25, 2013 to November 16, 2013) </TH></TR><TR class=bg-colour-yellow><TH id=dc2 colSpan=4 headers=dc1>Influenza A </TH><TH id=dc7 headers=dc1>B </TH><TH id=dc8 headers=dc1>Influenza A and B </TH></TR><TR class=bg-colour-grey-light><TH id=dc3 headers="dc1 dc2">A Total </TH><TH id=dc4 class=lightred headers="dc1 dc2">A(H1) pdm09 </TH><TH id=dc5 class=lightred headers="dc1 dc2">A(H3) </TH><TH id=dc6 class=lightred headers="dc1 dc2">A (UnS) </TH><TD class=alignCenter headers="dc1 dc7">Total</TD><TD class=alignCenter headers="dc1 dc8"># (%)</TD></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>1</SUP> Percentage of tests positive for sub-types of influenza A are a percentage of all influenza A detections.
UnS: unsubtyped: The specimen was typed as influenza A, but no result for subtyping was available.
</TD></TR></TFOOT><TBODY><TR><TH id=dr2 class=alignLeft headers=dr1>0-5m </TH><TD class=alignRight headers="dr1 dr2 dc1 dc2 dc3">1 </TD><TD class=alignRight headers="dr1 dr2 dc1 dc2 dc4">0 </TD><TD class=alignRight headers="dr1 dr2 dc1 dc2 dc5">0 </TD><TD class=alignRight headers="dr1 dr2 dc1 dc2 dc6">1 </TD><TD class=alignRight headers="dr1 dr2 dc1 dc7">0 </TD><TD class=alignRight headers="dr1 dr2 dc1 dc8">1 (10%) </TD></TR><TR><TH id=dr3 class=alignLeft headers=dr1>6-23m </TH><TD class=alignRight headers="dr1 dr3 dc1 dc2 dc3">0 </TD><TD class=alignRight headers="dr1 dr3 dc1 dc2 dc4">0 </TD><TD class=alignRight headers="dr1 dr3 dc1 dc2 dc5">0 </TD><TD class=alignRight headers="dr1 dr3 dc1 dc2 dc6">0 </TD><TD class=alignRight headers="dr1 dr3 dc1 dc7">0 </TD><TD class=alignRight headers="dr1 dr3 dc1 dc8">0 </TD></TR><TR><TH id=dr4 class=alignLeft headers=dr1>2-4y </TH><TD class=alignRight headers="dr1 dr4 dc1 dc2 dc3">3 </TD><TD class=alignRight headers="dr1 dr4 dc1 dc2 dc4">2 </TD><TD class=alignRight headers="dr1 dr4 dc1 dc2 dc5">0 </TD><TD class=alignRight headers="dr1 dr4 dc1 dc2 dc6">1 </TD><TD class=alignRight headers="dr1 dr4 dc1 dc7">3 </TD><TD class=alignRight headers="dr1 dr4 dc1 dc8">6 (60%) </TD></TR><TR><TH id=dr5 class=alignLeft headers=dr1>5-9y </TH><TD class=alignRight headers="dr1 dr5 dc1 dc2 dc3">1 </TD><TD class=alignRight headers="dr1 dr5 dc1 dc2 dc4">1 </TD><TD class=alignRight headers="dr1 dr5 dc1 dc2 dc5">0 </TD><TD class=alignRight headers="dr1 dr5 dc1 dc2 dc6">0 </TD><TD class=alignRight headers="dr1 dr5 dc1 dc7">1 </TD><TD class=alignRight headers="dr1 dr5 dc1 dc8">2 (20%) </TD></TR><TR><TH id=dr6 class=alignLeft headers=dr1>10-16y </TH><TD class=alignRight headers="dr1 dr6 dc1 dc2 dc3">1 </TD><TD class=alignRight headers="dr1 dr6 dc1 dc2 dc4">1 </TD><TD class=alignRight headers="dr1 dr6 dc1 dc2 dc5">0 </TD><TD class=alignRight headers="dr1 dr6 dc1 dc2 dc6">0 </TD><TD class=alignRight headers="dr1 dr6 dc1 dc7">0 </TD><TD class=alignRight headers="dr1 dr6 dc1 dc8">1 (10%) </TD></TR><TR><TH id=dr7 class=alignLeft headers=dr1>Total </TH><TD class=alignRight headers="dr1 dr7 dc1 dc2 dc3">6 </TD><TD class="lightred alignRight" headers="dr1 dr7 dc1 dc2 dc4">4 </TD><TD class="lightred alignRight" headers="dr1 dr7 dc1 dc2 dc5">0 </TD><TD class="lightred alignRight" headers="dr1 dr7 dc1 dc2 dc6">2 </TD><TD class=alignRight headers="dr1 dr7 dc1 dc7">4 </TD><TD class=alignRight headers="dr1 dr7 dc1 dc8">10 </TD></TR><TR><TH id=dr8 class=alignLeft headers=dr1>% <SUP>1</SUP> </TH><TD class=alignRight headers="dr1 dr8 dc1 dc2 dc3">60.0% </TD><TD class="lightred alignRight" headers="dr1 dr8 dc1 dc2 dc4">66.7% </TD><TD class="lightred alignRight" headers="dr1 dr8 dc1 dc2 dc5">0.0% </TD><TD class="lightred alignRight" headers="dr1 dr8 dc1 dc2 dc6">33.3% </TD><TD class=alignRight headers="dr1 dr8 dc1 dc7">40.0% </TD><TD class=alignRight headers="dr1 dr8 dc1 dc8">100.0% </TD></TR></TBODY></TABLE>
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 5 - Cumulative numbers of adult hospitalizations with influenza
reported by the PCIRN-SOS network, Canada, 2013-14
</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=er1 rowSpan=3>Age groups </TH><TH id=ec1 class=noWrap colSpan=6>Cumulative (Aug. 25, 2013 to November 16, 2013) </TH></TR><TR class=bg-colour-yellow><TH id=ec2 colSpan=4 headers=ec1>Influenza A </TH><TH id=ec7 headers=ec1>B </TH><TH id=ec8 headers=ec1>Influenza A and B </TH></TR><TR class=bg-colour-grey-light><TH id=ec3 headers="ec1 ec2">A Total </TH><TH id=ec4 class=lightred headers="ec1 ec2">A(H1) pdm09 </TH><TH id=ec5 class=lightred headers="ec1 ec2">A(H3) </TH><TH id=ec6 class=lightred headers="ec1 ec2">A(UnS) </TH><TD class=alignCenter headers="ec1 ec7">Total</TD><TD class=alignCenter headers="ec1 ec8"># (%)</TD></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>1</SUP> Percentage of tests positive for sub-types of influenza A are a percentage of all influenza A detections.
UnS: unsubtyped: The specimen was typed as influenza A, but no result for subtyping was available.
</TD></TR></TFOOT><TBODY><TR><TH id=er2 class=alignLeft headers=er1>16-20 </TH><TD class=alignRight headers="er1 er2 ec1 ec2 ec3">0</TD><TD class=alignRight headers="er1 er2 ec1 ec2 ec4">0</TD><TD class=alignRight headers="er1 er2 ec1 ec2 ec5">0</TD><TD class=alignRight headers="er1 er2 ec1 ec2 ec6">0</TD><TD class=alignRight headers="er1 er2 ec1 ec7">0</TD><TD class=alignRight headers="er1 er2 ec1 ec8">0</TD></TR><TR><TH id=er3 class=alignLeft headers=er1>20-44 </TH><TD class=alignRight headers="er1 er3 ec1 ec2 ec3">4</TD><TD class=alignRight headers="er1 er3 ec1 ec2 ec4">1</TD><TD class=alignRight headers="er1 er3 ec1 ec2 ec5">0</TD><TD class=alignRight headers="er1 er3 ec1 ec2 ec6">3</TD><TD class=alignRight headers="er1 er3 ec1 ec7">0</TD><TD class=alignRight headers="er1 er3 ec1 ec8">4 (36%)</TD></TR><TR><TH id=er4 class=alignLeft headers=er1>45-64 </TH><TD class=alignRight headers="er1 er4 ec1 ec2 ec3">4</TD><TD class=alignRight headers="er1 er4 ec1 ec2 ec4">0</TD><TD class=alignRight headers="er1 er4 ec1 ec2 ec5">1</TD><TD class=alignRight headers="er1 er4 ec1 ec2 ec6">3</TD><TD class=alignRight headers="er1 er4 ec1 ec7">0</TD><TD class=alignRight headers="er1 er4 ec1 ec8">4 (36%)</TD></TR><TR><TH id=er5 class=alignLeft headers=er1>65+ </TH><TD class=alignRight headers="er1 er5 ec1 ec2 ec3">3</TD><TD class=alignRight headers="er1 er5 ec1 ec2 ec4">0</TD><TD class=alignRight headers="er1 er5 ec1 ec2 ec5">0</TD><TD class=alignRight headers="er1 er5 ec1 ec2 ec6">3</TD><TD class=alignRight headers="er1 er5 ec1 ec7">0</TD><TD class=alignRight headers="er1 er5 ec1 ec8">3 (27%)</TD></TR><TR><TH id=er6 class=alignLeft headers=er1>Total </TH><TD class=alignRight headers="er1 er6 ec1 ec2 ec3">11</TD><TD class="alignRight lightred" headers="er1 er6 ec1 ec2 ec4">1</TD><TD class="alignRight lightred" headers="er1 er6 ec1 ec2 ec5">1</TD><TD class="alignRight lightred" headers="er1 er6 ec1 ec2 ec6">9</TD><TD class=alignRight headers="er1 er6 ec1 ec7">0</TD><TD class=alignRight headers="er1 er6 ec1 ec8">11</TD></TR><TR><TH id=er7 class=alignLeft headers=er1>%<SUP>1</SUP> </TH><TD class=alignRight headers="er1 er7 ec1 ec2 ec3">100%</TD><TD class="alignRight lightred" headers="er1 er7 ec1 ec2 ec4">9%</TD><TD class="alignRight lightred" headers="er1 er7 ec1 ec2 ec5">9%</TD><TD class="alignRight lightred" headers="er1 er7 ec1 ec2 ec6">82%</TD><TD class=alignRight headers="er1 er7 ec1 ec7">0%</TD><TD class=alignRight headers="er1 er7 ec1 ec8">100%</TD></TR></TBODY></TABLE>
Figure 8. Number of cases of influenza reported by sentinel hospital networks, by week, Canada, 2013-14
A) Paediatric hospitalizations (≤16 years of age, IMPACT)
Text equivalent for figure 8aNumber of cases of influenza reported by sentinel hospital networks, by week, Canada, 2013-14: Paediatric hospitalizations (≤16 years of age, IMPACT)
B) Adult hospitalizations (≥16 year of age, PCIRN-SOS)
Text equivalent for figure 8bNumber of cases of influenza reported by sentinel hospital networks, by week, Canada, 2013-14: Adult hospitalizations (>16 year of age, PCIRN-SOS)
Figure 9. Percentage of hospitalizations, ICU admissions and deaths with influenza reported by age-group, Canada, 2013-14
A) Paediatric hospitalizations (≤16 years of age, IMPACT)
Text equivalent for figure 9aPercentage of hospitalizations, ICU admissions and deaths with influenza reported by age-group, Canada, 2013-14: Paediatric hospitalizations (≤16 years of age, IMPACT)
B) Adult hospitalizations (≥16 year of age, PCIRN-SOS)
Text equivalent for figure 9bPercentage of hospitalizations, ICU admissions and deaths with influenza reported by age-group, Canada, 2013-14: Adult hospitalizations (≥16 year of age, PCIRN-SOS)
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Provincial/Territorial Influenza Hospitalizations and Deaths
In week 46, seven new laboratory-confirmed influenza-associated hospitalizations were reported from participating provinces and territories.* The cases were as follows: one child 2-4 years, two adults 20-44 years, two adults 45-64 years and two adults ≥65 years of age. All cases had influenza A, four A(H1N1)pdm09 and three A(unsubtyped). One ICU admission was reported in a child 2-4 years of age with A(H1N1)pdm09. No deaths were reported.
To date this season, 36 influenza-associated hospitalizations have been reported, of which 30 (83%) had influenza A (Table 6). A greater proportion of cases under 20 years of age had influenza B (50%) compared to those 20 years of age or older (3.8%). Four ICU admissions have been reported this season, three in adults 45-64 years of age and one in a child 2-4 years of age, all with A(H1N1)pdm09. No deaths have been reported. It is important to note that the hospitalization or 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: Data from the Aggregate Surveillance System may also include cases reported by the IMPACT and PCIRN networks. 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 Saskatchewan. ICU admissions are not reported in Ontario.
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION class=alignCenter>Table 6. Cumulative number of hospitalizations with influenza reported by the participating provinces and territories, Canada, 2013-14</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=fr1 rowSpan=3>Age groups </TH><TH id=fc1 colSpan=6>Cumulative (Aug. 25, 2013 to November 16, 2013) </TH></TR><TR class=bg-colour-yellow><TH id=fc2 colSpan=4 headers=fc1>Influenza A </TH><TH id=fc7 headers=fc1>B </TH><TH id=fc8 headers=fc1>Influenza A and B </TH></TR><TR class=bg-colour-grey-light><TH id=fc3 headers="fc1 fc2">A Total </TH><TH id=fc4 class=lightred headers="fc1 fc2">A(H1) pdm09 </TH><TH id=fc5 class=lightred headers="fc1 fc2">A(H3) </TH><TH id=fc6 class=lightred headers="fc1 fc2">A (UnS) </TH><TD class=alignCenter headers="fc1 fc7">Total</TD><TD class=alignCenter headers="fc1 fc8"># (%)</TD></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=8><SUP>1</SUP> Percentage of tests positive for sub-types of influenza A are a percentage of all influenza A detections.
UnS: unsubtyped: The specimen was typed as influenza A, but no result for subtyping was available.
</TD></TR></TFOOT><TBODY><TR><TH id=fr2 class=alignLeft headers=fr1>0-4 years </TH><TD class=alignRight headers="fr1 fr2 fc1 fc2 fc3">3</TD><TD class=alignRight headers="fr1 fr2 fc1 fc2 fc4">1</TD><TD class=alignRight headers="fr1 fr2 fc1 fc2 fc5">1</TD><TD class=alignRight headers="fr1 fr2 fc1 fc2 fc6">1</TD><TD class=alignRight headers="fr1 fr2 fc1 fc7">4</TD><TD class=alignRight headers="fr1 fr2 fc1 fc8">7 (19%)</TD></TR><TR><TH id=fr3 class=alignLeft headers=fr1>5-14 years </TH><TD class=alignRight headers="fr1 fr3 fc1 fc2 fc3">0</TD><TD class=alignRight headers="fr1 fr3 fc1 fc2 fc4">0</TD><TD class=alignRight headers="fr1 fr3 fc1 fc2 fc5">0</TD><TD class=alignRight headers="fr1 fr3 fc1 fc2 fc6">0</TD><TD class=alignRight headers="fr1 fr3 fc1 fc7">1</TD><TD class=alignRight headers="fr1 fr3 fc1 fc8">1 (3%)</TD></TR><TR><TH id=fr4 class=alignLeft headers=fr1>15-19 years </TH><TD class=alignRight headers="fr1 fr4 fc1 fc2 fc3">2</TD><TD class=alignRight headers="fr1 fr4 fc1 fc2 fc4">1</TD><TD class=alignRight headers="fr1 fr4 fc1 fc2 fc5">0</TD><TD class=alignRight headers="fr1 fr4 fc1 fc2 fc6">1</TD><TD class=alignRight headers="fr1 fr4 fc1 fc7">0</TD><TD class=alignRight headers="fr1 fr4 fc1 fc8">2 (6%)</TD></TR><TR><TH id=fr5 class=alignLeft headers=fr1>20-44 years </TH><TD class=alignRight headers="fr1 fr5 fc1 fc2 fc3">4</TD><TD class=alignRight headers="fr1 fr5 fc1 fc2 fc4">1</TD><TD class=alignRight headers="fr1 fr5 fc1 fc2 fc5">0</TD><TD class=alignRight headers="fr1 fr5 fc1 fc2 fc6">3</TD><TD class=alignRight headers="fr1 fr5 fc1 fc7">0</TD><TD class=alignRight headers="fr1 fr5 fc1 fc8">4 (11%)</TD></TR><TR><TH id=fr6 class=alignLeft headers=fr1>45-64 years </TH><TD class=alignRight headers="fr1 fr6 fc1 fc2 fc3">14</TD><TD class=alignRight headers="fr1 fr6 fc1 fc2 fc4">5</TD><TD class=alignRight headers="fr1 fr6 fc1 fc2 fc5">6</TD><TD class=alignRight headers="fr1 fr6 fc1 fc2 fc6">3</TD><TD class=alignRight headers="fr1 fr6 fc1 fc7">1</TD><TD class=alignRight headers="fr1 fr6 fc1 fc8">15 (42%)</TD></TR><TR><TH id=fr7 class=alignLeft headers=fr1>65+ years </TH><TD class=alignRight headers="fr1 fr7 fc1 fc2 fc3">7</TD><TD class=alignRight headers="fr1 fr7 fc1 fc2 fc4">4</TD><TD class=alignRight headers="fr1 fr7 fc1 fc2 fc5">1</TD><TD class=alignRight headers="fr1 fr7 fc1 fc2 fc6">2</TD><TD class=alignRight headers="fr1 fr7 fc1 fc7">0</TD><TD class=alignRight headers="fr1 fr7 fc1 fc8">7 (19%)</TD></TR><TR><TH id=fr8 class=alignLeft headers=fr1>Total </TH><TD class=alignRight headers="fr1 fr8 fc1 fc2 fc3">30</TD><TD class="alignRight lightred" headers="fr1 fr8 fc1 fc2 fc4">12</TD><TD class="alignRight lightred" headers="fr1 fr8 fc1 fc2 fc5">8</TD><TD class="alignRight lightred" headers="fr1 fr8 fc1 fc2 fc6">10</TD><TD class=alignRight headers="fr1 fr8 fc1 fc7">6</TD><TD class=alignRight headers="fr1 fr8 fc1 fc8">36</TD></TR><TR><TH id=fr9 class=alignLeft headers=fr1>Percentage <SUP>1</SUP> </TH><TD class=alignRight headers="fr1 fr9 fc1 fc2 fc3">83.3%</TD><TD class="alignRight lightred" headers="fr1 fr9 fc1 fc2 fc4">40.0%</TD><TD class="alignRight lightred" headers="fr1 fr9 fc1 fc2 fc5">26.7%</TD><TD class="alignRight lightred" headers="fr1 fr9 fc1 fc2 fc6">33.3%</TD><TD class=alignRight headers="fr1 fr9 fc1 fc7">16.7%</TD><TD class=alignRight headers="fr1 fr9 fc1 fc8">100%</TD></TR></TBODY></TABLE>
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