FluWatch report: August 24 to September 6, 2014 (Weeks 35 and 36)
Posted 2014-09-12For 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, 288 KB - 10 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/14-15/w36_14/pdf/fw2014-36-eng.pdf">FluWatch report: August 24 to September 6, 2014 (Weeks 35 and 36) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 288 <ABBR title=Kilobytes>KB</ABBR> - 10 pages)
?? Help with PDF documents
Overall Summary
Influenza/ILI Activity (geographic spread)
In weeks 35 and 36, most regions in Canada reported no influenza/ILI activity. During these two weeks, one region in Quebec reported sporadic activity; and in week 36, two other regions (BC(1) and ON(1)) reported sporadic activity (Figure 1). In week 35, six regions did not report data, and in week 36, one region did not report.
Figure 1. Map of overall influenza/ILI activity level by province and territory, Canada, Week 36
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 at inter-seasonal levels in week 35 (5 detections) and week 36 (4 detections), with <1% of tests positive since early July (Figure 2). Most jurisdictions have reported only sporadic numbers of influenza detections in recent weeks (Table 1, Table 2).
Figure 2. Number of positive influenza tests and percentage of tests positive, by type, subtype and report week, Canada, 2014-15
Text equivalent for figure 2Number of positive influenza tests and percentage of tests positive, by type, subtype and report week, Canada, 2013-14
In weeks 35 and 36, detections of most other respiratory viruses were at inter-seasonal levels (RSV, coronavirus, and human metapneumovirus). Detections of parainfluenza, adenovirus and rhinovirus were in keeping with their usual pattern of seasonal circulation (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, 2014-15
Top of Page
RSV: Respiratory syncytial virus; hMPV: Human metapneumovirus
Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2013-2014
<TABLE id=t1 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, 2014-15
</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces <SUP>1</SUP></TH><TH id=ac1 colSpan=5>Two weeks (August 24 to September 6, 2014)</TH><TH id=ac8 colSpan=5>Cumulative
(August 24 to September 6, 2014)
</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=" bg-colour-blue" headers="ac1 ac2">A(H1)pdm09</TH><TH id=ac5 class=" bg-colour-blue" headers="ac1 ac2">A(H3)</TH><TH id=ac6 class=" bg-colour-blue" 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=" bg-colour-blue" headers="ac8 ac9">A(H1)pdm09</TH><TH id=ac12 class=" bg-colour-blue" headers="ac8 ac9">A(H3)</TH><TH id=ac13 class=" bg-colour-blue" 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>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar3 class=alignLeft headers=ar1>AB</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar4 class=alignLeft headers=ar1>SK</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar5 class=alignLeft headers=ar1>MB</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar6 class=alignLeft headers=ar1>ON</TH><TD class=alignRight>2</TD><TD class=alignRight>0</TD><TD class=alignRight>1</TD><TD class=alignRight>1</TD><TD class=alignRight>1</TD><TD class=alignRight>2</TD><TD class=alignRight>0</TD><TD class=alignRight>1</TD><TD class=alignRight>1</TD><TD class=alignRight>1</TD></TR><TR><TH id=ar7 class=alignLeft headers=ar1>QC</TH><TD class=alignRight>3</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>3</TD><TD class=alignRight>3</TD><TD class=alignRight>3</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>3</TD><TD class=alignRight>3</TD></TR><TR><TH id=ar8 class=alignLeft headers=ar1>NB</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar9 class=alignLeft headers=ar1>NS</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar10 class=alignLeft headers=ar1>PE</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar11 class=alignLeft headers=ar1>NL</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar12 class=alignLeft headers=ar1>Canada</TH><TD class=alignRight>5</TD><TD class="alignRight bg-colour-blue">0</TD><TD class="alignRight bg-colour-blue">1</TD><TD class="alignRight bg-colour-blue">4</TD><TD class=alignRight>4</TD><TD class=alignRight>5</TD><TD class="alignRight bg-colour-blue">0</TD><TD class="alignRight bg-colour-blue">1</TD><TD class="alignRight bg-colour-blue">4</TD><TD class=alignRight>4</TD></TR><TR><TH id=ar13 class=alignLeft headers=ar1>Percentage<SUP>2</SUP></TH><TD class=alignRight>55.6%</TD><TD class="alignRight bg-colour-blue">0.0%</TD><TD class="alignRight bg-colour-blue">20.0%</TD><TD class="alignRight bg-colour-blue">80.0%</TD><TD class=alignRight>44.4%</TD><TD class=alignRight>55.6%</TD><TD class="alignRight bg-colour-blue">0.0%</TD><TD class="alignRight bg-colour-blue">20.0%</TD><TD class="alignRight bg-colour-blue">80.0%</TD><TD class=alignRight>44.4%</TD></TR></TBODY></TABLE>
Table 2. Weekly and cumulative numbers of positive influenza specimens by type, subtype and age-group reported through case-based laboratory reporting, Canada, 2014-15
Data suppressed for the 2014-15 season due to small values.
Table 2 will be updated when additional data are received.
<!-- <table cellspacing="0" cellpadding="2" border="1" class="widthFull" id="t2"> <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, 2014-15 </caption> <thead> <tr class="bg-colour-yellow"> <th rowspan="3" id="br1">Age groups (years)</th> <th colspan="5" id="bc1">Two weeks
(August 24 to September 6, 2014)</th> <th colspan="7" id="bc8">Cumulative
(August 24 to September 6, 2014)</th> </tr> <tr class="bg-colour-yellow"> <th colspan="4" id="bc2" headers="bc1">Influenza A</th> <th id="bc7" headers="bc1">B</th> <th colspan="4" id="bc9" headers="bc8">Influenza A</th> <th id="bc14" headers="bc8">B</th> <th colspan="2" id="bc15" headers="bc8">Influenza A and B</th> </tr> <tr class="bg-colour-grey-light"> <th id="bc3" headers="bc1 bc2">A Total</th> <th class="bg-colour-blue " id="bc4" headers="bc1 bc2">A(H1) pdm09</th> <th class="bg-colour-blue " id="bc5" headers="bc1 bc2">A(H3)</th> <th class="bg-colour-blue " id="bc6" headers="bc1 bc2">A (UnS)</th> <td headers="bc1 bc7" class="alignCenter">Total</td> <th id="bc10" headers="bc8 bc9">A Total</th> <th class="bg-colour-blue " id="bc11" headers="bc8 bc9">A(H1) pdm09</th> <th class="bg-colour-blue " id="bc12" headers="bc8 bc9">A(H3)</th> <th class="bg-colour-blue " id="bc13" headers="bc8 bc9">A (UnS)</th> <td headers="bc8 bc14" class="alignCenter">Total</td> <th id="bc16" headers="bc8 bc15">#</th> <th id="bc17" headers="bc8 bc15">%</th> </tr> </thead> <tfoot> <tr> <td colspan="13" class="fontSize85"><sup id="footnote_t2_1">1 </sup>Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Cumulative data includes updates to previous weeks.
<sup id="footnote_t2_2">2 </sup> Percentage of tests positive for sub-types of influenza A are a percentage of all influenza A detections.
<sup id="footnote_t2_3">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 class="alignLeft" id="br2" headers="br1"><5</th> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">1</td> <td class="alignRight">12.5%</td> </tr> <tr> <th class="alignLeft" id="br3" headers="br1">5-19</th> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">12.5%</td> </tr> <tr> <th class="alignLeft" id="br4" headers="br1">20-44</th> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">12.5%</td> </tr> <tr> <th class="alignLeft" id="br5" headers="br1">45-64</th> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">1</td> <td class="alignRight">12.5%</td> </tr> <tr> <th class="alignLeft" id="br6" headers="br1">65+</th> <td class="alignRight">4</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">3</td> <td class="alignRight">0</td> <td class="alignRight">4</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">3</td> <td class="alignRight">0</td> <td class="alignRight">4</td> <td class="alignRight">50.0%</td> </tr> <tr> <th class="alignLeft" id="br7" headers="br1">Unknown</th> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0.0%</td> </tr> <tr> <th class="alignLeft" id="br8" headers="br1">Total</th> <td class="alignRight">6</td> <td class="alignRight bg-colour-blue">0</td> <td class="alignRight bg-colour-blue">1</td> <td class="alignRight bg-colour-blue">5</td> <td class="alignRight">2</td> <td class="alignRight">6</td> <td class="alignRight bg-colour-blue">0</td> <td class="alignRight bg-colour-blue">1</td> <td class="alignRight bg-colour-blue">5</td> <td class="alignRight">2</td> <td class="alignRight">8</td> <td class="alignRight">100.0%</td> </tr> <tr> <th class="alignLeft" id="br9" headers="br1">Percentage<sup>2</sup></th> <td class="alignRight">75.0%</td> <td class="alignRight bg-colour-blue">0.0%</td> <td class="alignRight bg-colour-blue">16.7%</td> <td class="alignRight bg-colour-blue">83.3%</td> <td class="alignRight">25.0%</td> <td class="alignRight">75.0%</td> <td class="alignRight bg-colour-blue">0.0%</td> <td class="alignRight bg-colour-blue">16.7%</td> <td class="alignRight bg-colour-blue">83.3%</td> <td class="alignRight">25.0%</td> <td class="alignRight"> </td> <td class="alignRight"> </td> </tr> </tbody> </table>-->
Top of Page
Influenza Strain Characterizations
The National Microbiology Laboratory (NML) has not yet reported any influenza strain characterizations for the 2014-15 season (Figure 4).
Figure 4. Influenza strain characterizations, Canada, 2014-2015, N = 0
<!---->
The National Microbiology Laboratory (NML) has not yet conducted antigenic characterization of influenza viruses collected during the 2014-15 season.
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 2014-2015 northern hemisphere trivalent influenza vaccine include: an A/California/7/2009(H1N1)pdm09-like virus, an A/Texas/50/2012 (H3N2)-like virus, and a B/Massachusetts/2/2012-like virus (Yamagata lineage). For quadrivalent vaccines, the addition of a B/Brisbane/60/2008-like virus is recommended.
Text equivalent for figure 4Influenza strain characterizations, Canada, 2013-2014, N =3
Antiviral Resistance
The NML has not yet reported antiviral resistance results for influenza viruses collected during the 2014-15 season (Table 3).
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2014-15</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=t3hc1 rowSpan=2>Virus type and subtype</TH><TH id=t3hc2 colSpan=2>Oseltamivir</TH><TH id=t3hc3 colSpan=2>Zanamivir</TH><TH id=t3hc4 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=t3hc5 headers=t3hc2># tested</TH><TH id=t3hc6 headers=t3hc2># resistant (%)</TH><TH id=t3hc7 headers=t3hc3># tested</TH><TH id=t3hc8 headers=t3hc3># resistant (%)</TH><TH id=t3hc9 headers=t3hc4># tested</TH><TH id=t3hc10 headers=t3hc4># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=t3hr1 class="alignLeft bg-colour-blue" headers=t3hc1>A (H3N2)</TH><TD class=alignCenter headers="t3hr1 t3hc2 t3hc5">0</TD><TD class=alignCenter headers="t3hr1 t3hc2 t3hc6">0</TD><TD class=alignCenter headers="t3hr1 t3hc3 t3hc7">0</TD><TD class=alignCenter headers="t3hr1 t3hc3 t3hc8">0</TD><TD class=alignCenter headers="t3hr1 t3hc4 t3hc9">0</TD><TD class=alignCenter headers="t3hr1 t3hc4 t3hc10">0</TD></TR><TR><TH id=t3hr2 class="alignLeft bg-colour-blue" headers=t3hc1>A (H1N1)</TH><TD class=alignCenter headers="t3hr2 t3hc2 t3hc5">0</TD><TD class=alignCenter headers="t3hr2 t3hc2 t3hc6">0</TD><TD class=alignCenter headers="t3hr2 t3hc3 t3hc7">0</TD><TD class=alignCenter headers="t3hr2 t3hc3 t3hc8">0</TD><TD class=alignCenter headers="t3hr2 t3hc4 t3hc9">0</TD><TD class=alignCenter headers="t3hr2 t3hc4 t3hc10">0</TD></TR><TR><TH id=t3hr3 class="alignLeft bg-colour-blue" headers=t3hc1>B</TH><TD class=alignCenter headers="t3hr3 t3hc2 t3hc5">0</TD><TD class=alignCenter headers="t3hr3 t3hc2 t3hc6">0</TD><TD class=alignCenter headers="t3hr3 t3hc3 t3hc7">0</TD><TD class=alignCenter headers="t3hr3 t3hc3 t3hc8">0</TD><TD class=alignCenter headers="t3hr3 t3hc4 t3hc9">NA <SUP>*</SUP></TD><TD class=alignCenter headers="t3hr3 t3hc4 t3hc10">NA <SUP>*</SUP></TD></TR><TR><TH id=t3hr4 class="alignLeft bg-colour-blue" headers=t3hc1>TOTAL</TH><TD class=alignCenter headers="t3hr4 t3hc2 t3hc5">0</TD><TD class=alignCenter headers="t3hr4 t3hc2 t3hc6">0</TD><TD class=alignCenter headers="t3hr4 t3hc3 t3hc7">0</TD><TD class=alignCenter headers="t3hr4 t3hc3 t3hc8">0</TD><TD class=alignCenter headers="t3hr4 t3hc4 t3hc9">0</TD><TD class=alignCenter headers="t3hr4 t3hc4 t3hc10">0</TD></TR></TBODY></TABLE>
Influenza-like Illness (ILI) Consultation Rate
The national influenza-like-illness (ILI) consultation rate increased from 8.0 consultations per 1,000 patient visits in week 34 to 13.6 per 1,000 in week 35 and decreased slightly to 12.3 per 1,000 in week 36 (Figure 5). The rates since mid-June have been above the expected range for this time of year.
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, 2014-2015
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
Top of Page
Influenza Outbreak Surveillance
No new outbreaks of influenza were reported in weeks 35 and 36 (Figure 6).
Figure 6. Overall number of new influenza outbreaks by report week, Canada, 2014-2015
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 6Overall number of new influenza outbreaks by report week, Canada, 2013-2014
Pharmacy Surveillance
In weeks 35 and 36, the proportion of prescriptions for antivirals was at inter-seasonal levels (Figure 7).
Figure 7. Proportion of prescription sales for influenza antivirals by age-group and week, Canada, 2014-15
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
Top of Page
Sentinel Hospital Influenza Surveillance
Paediatric Influenza Hospitalizations and Deaths (IMPACT)
No laboratory-confirmed influenza-associated paediatric (≤16 years of age) hospitalizations have been reported by the Immunization Monitoring Program Active (IMPACT) network for the 2014-15 season (Figure 8a).
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)
Surveillance of laboratory-confirmed influenza-associated adult (≥16 years of age) hospitalizations by the PHAC/CIHR Influenza Research Network (PCIRN) Serious Outcomes Surveillance (SOS) network has not yet begun for the 2014-15 season (Figure 8b).
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 id=t4 class=alignCenter>Table 4 - Cumulative numbers of paediatric hospitalizations with influenza reported by the IMPACT network, Canada, 2014-15</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=dr1 rowSpan=3>Age groups </TH><TH id=dc1 colSpan=6>Cumulative (24 Aug. 2014 to 6 Sep. 2014) </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=bg-colour-blue headers="dc1 dc2">A(H1) pdm09 </TH><TH id=dc5 class=bg-colour-blue headers="dc1 dc2">A(H3) </TH><TH id=dc6 class=bg-colour-blue 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 id=footnote_t4_1>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=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr3 class=alignLeft headers=dr1>6-23m </TH><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr4 class=alignLeft headers=dr1>2-4y </TH><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr5 class=alignLeft headers=dr1>5-9y </TH><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr6 class=alignLeft headers=dr1>10-16y </TH><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr7 class=alignLeft headers=dr1>Total </TH><TD class=alignCenter>0</TD><TD class="alignCenter bg-colour-blue">0</TD><TD class="alignCenter bg-colour-blue">0</TD><TD class="alignCenter bg-colour-blue">0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD></TR><TR><TH id=dr8 class=alignLeft headers=dr1>% <SUP>1</SUP></TH><TD class=alignCenter>0.0%</TD><TD class="alignCenter bg-colour-blue">0.0%</TD><TD class="alignCenter bg-colour-blue">0.0%</TD><TD class="alignCenter bg-colour-blue">0.0%</TD><TD class=alignCenter>0.0%</TD><TD class=alignCenter>0.0%</TD></TR></TBODY></TABLE>
Table 5 - Cumulative numbers of adult hospitalizations with influenza reported by the PCIRN-SOS network, Canada, 2014-15
PCIRN-SOS surveillance for the 2014-15 season has not yet begun.
<!-- <table cellspacing="0" cellpadding="2" border="1" class="widthFull"> <caption class="alignCenter"> Table 5 - Cumulative numbers of adult hospitalizations with influenza reported by the PCIRN-SOS network, Canada, 2014-15 </caption> <thead> <tr class="bg-colour-yellow"> <th rowspan="3" id="er1">Age groups </th> <th id="ec1" colspan="6" class="noWrap">Cumulative (data not yet available for 2014-15)<sup>*</sup></th> </tr> <tr class="bg-colour-yellow"> <th colspan="4" id="ec2" 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="bg-colour-blue" headers="ec1 ec2">A(H1) pdm09 </th> <th id="ec5" class="bg-colour-blue" headers="ec1 ec2">A(H3) </th> <th id="ec6" class="bg-colour-blue" 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 colspan="7" class="fontSize85"><sup id="footnote_t5_1">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.
<sup id="t5_star">*</sup>Two cases for which the influenza type has not yet been reported, and four cases for which the age-group was not reported, are not included in Table 5.</td> </tr> </tfoot> <tbody> <tr> <th id="er2" class="alignLeft" headers="er1">16-20 </th> <td class="alignCenter" headers="er1 er2 ec1 ec2 ec3"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec2 ec4"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec2 ec5"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec8"> 0</td> </tr> <tr> <th id="er3" class="alignLeft" headers="er1">20-44 </th> <td class="alignCenter" headers="er1 er3 ec1 ec2 ec3"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec2 ec4"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec2 ec5"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec8"> 0</td> </tr> <tr> <th id="er4" class="alignLeft" headers="er1">45-64 </th> <td class="alignCenter" headers="er1 er4 ec1 ec2 ec3"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec2 ec4"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec2 ec5"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec8"> 0</td> </tr> <tr> <th id="er5" class="alignLeft" headers="er1">65+ </th> <td class="alignCenter" headers="er1 er5 ec1 ec2 ec3"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec2 ec4"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec2 ec5"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec8"> 0</td> </tr> <tr> <th id="er6" class="alignLeft" headers="er1">Total </th> <td class="alignCenter" headers="er1 er6 ec1 ec2 ec3"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er6 ec1 ec2 ec4"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er6 ec1 ec2 ec5"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er6 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er6 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er6 ec1 ec8"> 0</td> </tr> <tr> <th id="er7" class="alignLeft" headers="er1">% <sup>1</sup> </th> <td class="alignCenter" headers="er1 er7 ec1 ec2 ec3"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er7 ec1 ec2 ec4"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er7 ec1 ec2 ec5"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er7 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er7 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er7 ec1 ec8"> 0</td> </tr> </tbody> </table>-->Figure 8 - Number of cases of influenza reported by sentinel hospital networks, by week, Canada, 2014-15
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)
* See footnote above following the section related to PCIRN-SOS data.
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, 2014-15
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)
Top of Page
Provincial/Territorial Influenza Hospitalizations and Deaths
No laboratory-confirmed influenza-associated hospitalizations have been reported from participating provinces and territories* since the start of the 2014-15 season.
* Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, and NB. Only hospitalizations that require intensive medical care are reported by Saskatchewan. ICU admissions are not distinguished among hospital admissions reported from Ontario. Data may also include cases reported by the IMPACT and PCIRN networks.
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION id=t6 class=alignCenter>Table 6 - Cumulative number of hospitalizations with influenza reported by the participating provinces and territories, Canada, 2014-15</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=t4hc1 rowSpan=3>Age groups </TH><TH id=t4hc2 colSpan=6>Cumulative (24 Aug. 2014 to 6 Sep. 2014)</TH></TR><TR class=bg-colour-yellow><TH id=t4hc3 colSpan=4 headers=t4hc2>Influenza A</TH><TH id=t4hc4 headers=t4hc2>B</TH><TH id=t4hc5 headers=t4hc2>Influenza A and B</TH></TR><TR class=bg-colour-grey-light><TH id=t4hc6 headers="t4hc2 t4hc3">A Total</TH><TH id=t4hc7 class=bg-colour-blue headers="t4hc2 t4hc3">A(H1) pdm09</TH><TH id=t4hc8 class=bg-colour-blue headers="t4hc2 t4hc3">A(H3)</TH><TH id=t4hc9 class=bg-colour-blue headers="t4hc2 t4hc3">A (UnS)</TH><TD class=alignCenter headers="t4hc2 t4hc4">Total</TD><TD class=alignCenter headers="t4hc2 t4hc5"># (%)</TD></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=8><SUP id=footnote_t6_1>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=t4hr1 class=alignLeft headers=t4hc1>0-4 years</TH><TD class=alignCenter headers="t4hr1 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr2 class=alignLeft headers=t4hc1>5-19 years</TH><TD class=alignCenter headers="t4hr2 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr3 class=alignLeft headers=t4hc1>20-44 years </TH><TD class=alignCenter headers="t4hr3 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr4 class=alignLeft headers=t4hc1>45-64 years </TH><TD class=alignCenter headers="t4hr4 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr5 class=alignLeft headers=t4hc1>65+ years </TH><TD class=alignCenter headers="t4hr5 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr6 class=alignLeft headers=t4hc1>Unknown</TH><TD class=alignCenter headers="t4hr6 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr7 class=alignLeft headers=t4hc1>Total </TH><TD class=alignCenter headers="t4hr7 t4hc2 t4hc3 t4hc6">0</TD><TD class="alignCenter bg-colour-blue" headers="t4hr7 t4hc2 t4hc3 t4hc7">0</TD><TD class="alignCenter bg-colour-blue" headers="t4hr7 t4hc2 t4hc3 t4hc8">0</TD><TD class="alignCenter bg-colour-blue" headers="t4hr7 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr7 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr7 t4hc2 t4hc5">0</TD></TR><TR><TH id=t4hr8 class=alignLeft headers=t4hc1>Percentage <SUP>1</SUP></TH><TD class=alignCenter headers="t4hr8 t4hc2 t4hc3 t4hc6">0%</TD><TD class="alignCenter bg-colour-blue" headers="t4hr8 t4hc2 t4hc3 t4hc7">0%</TD><TD class="alignCenter bg-colour-blue" headers="t4hr8 t4hc2 t4hc3 t4hc8">0%</TD><TD class="alignCenter bg-colour-blue" headers="t4hr8 t4hc2 t4hc3 t4hc9">0%</TD><TD class=alignCenter headers="t4hr8 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr8 t4hc2 t4hc5">0%</TD></TR></TBODY></TABLE>
See additional data on Reported Influenza Hospitalizations and Deaths in Canada: 2009-10 to 2014-15 on the Public Health Agency of Canada website.
.../
Posted 2014-09-12For 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, 288 KB - 10 pages)" href="http://www.phac-aspc.gc.ca/fluwatch/14-15/w36_14/pdf/fw2014-36-eng.pdf">FluWatch report: August 24 to September 6, 2014 (Weeks 35 and 36) (<ABBR title="Portable Document Format">PDF</ABBR> Version - 288 <ABBR title=Kilobytes>KB</ABBR> - 10 pages)
?? Help with PDF documents
Overall Summary
- Influenza activity in Canada remains at inter-seasonal levels with only sporadic detections of influenza.
- In weeks 35 and 36 no outbreaks or hospitalizations were reported.
- This is the first FluWatch report of the 2014-15 influenza season.
Influenza/ILI Activity (geographic spread)
In weeks 35 and 36, most regions in Canada reported no influenza/ILI activity. During these two weeks, one region in Quebec reported sporadic activity; and in week 36, two other regions (BC(1) and ON(1)) reported sporadic activity (Figure 1). In week 35, six regions did not report data, and in week 36, one region did not report.
Figure 1. Map of overall influenza/ILI activity level by province and territory, Canada, Week 36
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 at inter-seasonal levels in week 35 (5 detections) and week 36 (4 detections), with <1% of tests positive since early July (Figure 2). Most jurisdictions have reported only sporadic numbers of influenza detections in recent weeks (Table 1, Table 2).
Figure 2. Number of positive influenza tests and percentage of tests positive, by type, subtype and report week, Canada, 2014-15
Text equivalent for figure 2Number of positive influenza tests and percentage of tests positive, by type, subtype and report week, Canada, 2013-14
In weeks 35 and 36, detections of most other respiratory viruses were at inter-seasonal levels (RSV, coronavirus, and human metapneumovirus). Detections of parainfluenza, adenovirus and rhinovirus were in keeping with their usual pattern of seasonal circulation (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, 2014-15
Top of Page
RSV: Respiratory syncytial virus; hMPV: Human metapneumovirus
Text equivalent for figure 3Overall Number of Influenza Outbreaks, Canada, by Report Week, 2013-2014
<TABLE id=t1 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, 2014-15
</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=ar1 rowSpan=3>Reporting provinces <SUP>1</SUP></TH><TH id=ac1 colSpan=5>Two weeks (August 24 to September 6, 2014)</TH><TH id=ac8 colSpan=5>Cumulative
(August 24 to September 6, 2014)
</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=" bg-colour-blue" headers="ac1 ac2">A(H1)pdm09</TH><TH id=ac5 class=" bg-colour-blue" headers="ac1 ac2">A(H3)</TH><TH id=ac6 class=" bg-colour-blue" 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=" bg-colour-blue" headers="ac8 ac9">A(H1)pdm09</TH><TH id=ac12 class=" bg-colour-blue" headers="ac8 ac9">A(H3)</TH><TH id=ac13 class=" bg-colour-blue" 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>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar3 class=alignLeft headers=ar1>AB</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar4 class=alignLeft headers=ar1>SK</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar5 class=alignLeft headers=ar1>MB</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar6 class=alignLeft headers=ar1>ON</TH><TD class=alignRight>2</TD><TD class=alignRight>0</TD><TD class=alignRight>1</TD><TD class=alignRight>1</TD><TD class=alignRight>1</TD><TD class=alignRight>2</TD><TD class=alignRight>0</TD><TD class=alignRight>1</TD><TD class=alignRight>1</TD><TD class=alignRight>1</TD></TR><TR><TH id=ar7 class=alignLeft headers=ar1>QC</TH><TD class=alignRight>3</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>3</TD><TD class=alignRight>3</TD><TD class=alignRight>3</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>3</TD><TD class=alignRight>3</TD></TR><TR><TH id=ar8 class=alignLeft headers=ar1>NB</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar9 class=alignLeft headers=ar1>NS</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar10 class=alignLeft headers=ar1>PE</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar11 class=alignLeft headers=ar1>NL</TH><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD><TD class=alignRight>0</TD></TR><TR><TH id=ar12 class=alignLeft headers=ar1>Canada</TH><TD class=alignRight>5</TD><TD class="alignRight bg-colour-blue">0</TD><TD class="alignRight bg-colour-blue">1</TD><TD class="alignRight bg-colour-blue">4</TD><TD class=alignRight>4</TD><TD class=alignRight>5</TD><TD class="alignRight bg-colour-blue">0</TD><TD class="alignRight bg-colour-blue">1</TD><TD class="alignRight bg-colour-blue">4</TD><TD class=alignRight>4</TD></TR><TR><TH id=ar13 class=alignLeft headers=ar1>Percentage<SUP>2</SUP></TH><TD class=alignRight>55.6%</TD><TD class="alignRight bg-colour-blue">0.0%</TD><TD class="alignRight bg-colour-blue">20.0%</TD><TD class="alignRight bg-colour-blue">80.0%</TD><TD class=alignRight>44.4%</TD><TD class=alignRight>55.6%</TD><TD class="alignRight bg-colour-blue">0.0%</TD><TD class="alignRight bg-colour-blue">20.0%</TD><TD class="alignRight bg-colour-blue">80.0%</TD><TD class=alignRight>44.4%</TD></TR></TBODY></TABLE>
Table 2. Weekly and cumulative numbers of positive influenza specimens by type, subtype and age-group reported through case-based laboratory reporting, Canada, 2014-15
Data suppressed for the 2014-15 season due to small values.
Table 2 will be updated when additional data are received.
<!-- <table cellspacing="0" cellpadding="2" border="1" class="widthFull" id="t2"> <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, 2014-15 </caption> <thead> <tr class="bg-colour-yellow"> <th rowspan="3" id="br1">Age groups (years)</th> <th colspan="5" id="bc1">Two weeks
(August 24 to September 6, 2014)</th> <th colspan="7" id="bc8">Cumulative
(August 24 to September 6, 2014)</th> </tr> <tr class="bg-colour-yellow"> <th colspan="4" id="bc2" headers="bc1">Influenza A</th> <th id="bc7" headers="bc1">B</th> <th colspan="4" id="bc9" headers="bc8">Influenza A</th> <th id="bc14" headers="bc8">B</th> <th colspan="2" id="bc15" headers="bc8">Influenza A and B</th> </tr> <tr class="bg-colour-grey-light"> <th id="bc3" headers="bc1 bc2">A Total</th> <th class="bg-colour-blue " id="bc4" headers="bc1 bc2">A(H1) pdm09</th> <th class="bg-colour-blue " id="bc5" headers="bc1 bc2">A(H3)</th> <th class="bg-colour-blue " id="bc6" headers="bc1 bc2">A (UnS)</th> <td headers="bc1 bc7" class="alignCenter">Total</td> <th id="bc10" headers="bc8 bc9">A Total</th> <th class="bg-colour-blue " id="bc11" headers="bc8 bc9">A(H1) pdm09</th> <th class="bg-colour-blue " id="bc12" headers="bc8 bc9">A(H3)</th> <th class="bg-colour-blue " id="bc13" headers="bc8 bc9">A (UnS)</th> <td headers="bc8 bc14" class="alignCenter">Total</td> <th id="bc16" headers="bc8 bc15">#</th> <th id="bc17" headers="bc8 bc15">%</th> </tr> </thead> <tfoot> <tr> <td colspan="13" class="fontSize85"><sup id="footnote_t2_1">1 </sup>Specimens from NT, YT, and NU are sent to reference laboratories in other provinces. Cumulative data includes updates to previous weeks.
<sup id="footnote_t2_2">2 </sup> Percentage of tests positive for sub-types of influenza A are a percentage of all influenza A detections.
<sup id="footnote_t2_3">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 class="alignLeft" id="br2" headers="br1"><5</th> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">1</td> <td class="alignRight">12.5%</td> </tr> <tr> <th class="alignLeft" id="br3" headers="br1">5-19</th> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">12.5%</td> </tr> <tr> <th class="alignLeft" id="br4" headers="br1">20-44</th> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">12.5%</td> </tr> <tr> <th class="alignLeft" id="br5" headers="br1">45-64</th> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">1</td> <td class="alignRight">12.5%</td> </tr> <tr> <th class="alignLeft" id="br6" headers="br1">65+</th> <td class="alignRight">4</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">3</td> <td class="alignRight">0</td> <td class="alignRight">4</td> <td class="alignRight">0</td> <td class="alignRight">1</td> <td class="alignRight">3</td> <td class="alignRight">0</td> <td class="alignRight">4</td> <td class="alignRight">50.0%</td> </tr> <tr> <th class="alignLeft" id="br7" headers="br1">Unknown</th> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0</td> <td class="alignRight">0.0%</td> </tr> <tr> <th class="alignLeft" id="br8" headers="br1">Total</th> <td class="alignRight">6</td> <td class="alignRight bg-colour-blue">0</td> <td class="alignRight bg-colour-blue">1</td> <td class="alignRight bg-colour-blue">5</td> <td class="alignRight">2</td> <td class="alignRight">6</td> <td class="alignRight bg-colour-blue">0</td> <td class="alignRight bg-colour-blue">1</td> <td class="alignRight bg-colour-blue">5</td> <td class="alignRight">2</td> <td class="alignRight">8</td> <td class="alignRight">100.0%</td> </tr> <tr> <th class="alignLeft" id="br9" headers="br1">Percentage<sup>2</sup></th> <td class="alignRight">75.0%</td> <td class="alignRight bg-colour-blue">0.0%</td> <td class="alignRight bg-colour-blue">16.7%</td> <td class="alignRight bg-colour-blue">83.3%</td> <td class="alignRight">25.0%</td> <td class="alignRight">75.0%</td> <td class="alignRight bg-colour-blue">0.0%</td> <td class="alignRight bg-colour-blue">16.7%</td> <td class="alignRight bg-colour-blue">83.3%</td> <td class="alignRight">25.0%</td> <td class="alignRight"> </td> <td class="alignRight"> </td> </tr> </tbody> </table>-->
Top of Page
Influenza Strain Characterizations
The National Microbiology Laboratory (NML) has not yet reported any influenza strain characterizations for the 2014-15 season (Figure 4).
Figure 4. Influenza strain characterizations, Canada, 2014-2015, N = 0
<!---->
The National Microbiology Laboratory (NML) has not yet conducted antigenic characterization of influenza viruses collected during the 2014-15 season.
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 2014-2015 northern hemisphere trivalent influenza vaccine include: an A/California/7/2009(H1N1)pdm09-like virus, an A/Texas/50/2012 (H3N2)-like virus, and a B/Massachusetts/2/2012-like virus (Yamagata lineage). For quadrivalent vaccines, the addition of a B/Brisbane/60/2008-like virus is recommended.
Text equivalent for figure 4Influenza strain characterizations, Canada, 2013-2014, N =3
Antiviral Resistance
The NML has not yet reported antiviral resistance results for influenza viruses collected during the 2014-15 season (Table 3).
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION>Table 3. Antiviral resistance by influenza virus type and subtype, Canada, 2014-15</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=t3hc1 rowSpan=2>Virus type and subtype</TH><TH id=t3hc2 colSpan=2>Oseltamivir</TH><TH id=t3hc3 colSpan=2>Zanamivir</TH><TH id=t3hc4 colSpan=2>Amantadine</TH></TR><TR class=bg-colour-yellow><TH id=t3hc5 headers=t3hc2># tested</TH><TH id=t3hc6 headers=t3hc2># resistant (%)</TH><TH id=t3hc7 headers=t3hc3># tested</TH><TH id=t3hc8 headers=t3hc3># resistant (%)</TH><TH id=t3hc9 headers=t3hc4># tested</TH><TH id=t3hc10 headers=t3hc4># resistant (%)</TH></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=7><SUP>*</SUP> NA - not applicable</TD></TR></TFOOT><TBODY><TR><TH id=t3hr1 class="alignLeft bg-colour-blue" headers=t3hc1>A (H3N2)</TH><TD class=alignCenter headers="t3hr1 t3hc2 t3hc5">0</TD><TD class=alignCenter headers="t3hr1 t3hc2 t3hc6">0</TD><TD class=alignCenter headers="t3hr1 t3hc3 t3hc7">0</TD><TD class=alignCenter headers="t3hr1 t3hc3 t3hc8">0</TD><TD class=alignCenter headers="t3hr1 t3hc4 t3hc9">0</TD><TD class=alignCenter headers="t3hr1 t3hc4 t3hc10">0</TD></TR><TR><TH id=t3hr2 class="alignLeft bg-colour-blue" headers=t3hc1>A (H1N1)</TH><TD class=alignCenter headers="t3hr2 t3hc2 t3hc5">0</TD><TD class=alignCenter headers="t3hr2 t3hc2 t3hc6">0</TD><TD class=alignCenter headers="t3hr2 t3hc3 t3hc7">0</TD><TD class=alignCenter headers="t3hr2 t3hc3 t3hc8">0</TD><TD class=alignCenter headers="t3hr2 t3hc4 t3hc9">0</TD><TD class=alignCenter headers="t3hr2 t3hc4 t3hc10">0</TD></TR><TR><TH id=t3hr3 class="alignLeft bg-colour-blue" headers=t3hc1>B</TH><TD class=alignCenter headers="t3hr3 t3hc2 t3hc5">0</TD><TD class=alignCenter headers="t3hr3 t3hc2 t3hc6">0</TD><TD class=alignCenter headers="t3hr3 t3hc3 t3hc7">0</TD><TD class=alignCenter headers="t3hr3 t3hc3 t3hc8">0</TD><TD class=alignCenter headers="t3hr3 t3hc4 t3hc9">NA <SUP>*</SUP></TD><TD class=alignCenter headers="t3hr3 t3hc4 t3hc10">NA <SUP>*</SUP></TD></TR><TR><TH id=t3hr4 class="alignLeft bg-colour-blue" headers=t3hc1>TOTAL</TH><TD class=alignCenter headers="t3hr4 t3hc2 t3hc5">0</TD><TD class=alignCenter headers="t3hr4 t3hc2 t3hc6">0</TD><TD class=alignCenter headers="t3hr4 t3hc3 t3hc7">0</TD><TD class=alignCenter headers="t3hr4 t3hc3 t3hc8">0</TD><TD class=alignCenter headers="t3hr4 t3hc4 t3hc9">0</TD><TD class=alignCenter headers="t3hr4 t3hc4 t3hc10">0</TD></TR></TBODY></TABLE>
Influenza-like Illness (ILI) Consultation Rate
The national influenza-like-illness (ILI) consultation rate increased from 8.0 consultations per 1,000 patient visits in week 34 to 13.6 per 1,000 in week 35 and decreased slightly to 12.3 per 1,000 in week 36 (Figure 5). The rates since mid-June have been above the expected range for this time of year.
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, 2014-2015
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
Top of Page
Influenza Outbreak Surveillance
No new outbreaks of influenza were reported in weeks 35 and 36 (Figure 6).
Figure 6. Overall number of new influenza outbreaks by report week, Canada, 2014-2015
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 6Overall number of new influenza outbreaks by report week, Canada, 2013-2014
Pharmacy Surveillance
In weeks 35 and 36, the proportion of prescriptions for antivirals was at inter-seasonal levels (Figure 7).
Figure 7. Proportion of prescription sales for influenza antivirals by age-group and week, Canada, 2014-15
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
Top of Page
Sentinel Hospital Influenza Surveillance
Paediatric Influenza Hospitalizations and Deaths (IMPACT)
No laboratory-confirmed influenza-associated paediatric (≤16 years of age) hospitalizations have been reported by the Immunization Monitoring Program Active (IMPACT) network for the 2014-15 season (Figure 8a).
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)
Surveillance of laboratory-confirmed influenza-associated adult (≥16 years of age) hospitalizations by the PHAC/CIHR Influenza Research Network (PCIRN) Serious Outcomes Surveillance (SOS) network has not yet begun for the 2014-15 season (Figure 8b).
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 id=t4 class=alignCenter>Table 4 - Cumulative numbers of paediatric hospitalizations with influenza reported by the IMPACT network, Canada, 2014-15</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=dr1 rowSpan=3>Age groups </TH><TH id=dc1 colSpan=6>Cumulative (24 Aug. 2014 to 6 Sep. 2014) </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=bg-colour-blue headers="dc1 dc2">A(H1) pdm09 </TH><TH id=dc5 class=bg-colour-blue headers="dc1 dc2">A(H3) </TH><TH id=dc6 class=bg-colour-blue 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 id=footnote_t4_1>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=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr3 class=alignLeft headers=dr1>6-23m </TH><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr4 class=alignLeft headers=dr1>2-4y </TH><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr5 class=alignLeft headers=dr1>5-9y </TH><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr6 class=alignLeft headers=dr1>10-16y </TH><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0 (0%)</TD></TR><TR><TH id=dr7 class=alignLeft headers=dr1>Total </TH><TD class=alignCenter>0</TD><TD class="alignCenter bg-colour-blue">0</TD><TD class="alignCenter bg-colour-blue">0</TD><TD class="alignCenter bg-colour-blue">0</TD><TD class=alignCenter>0</TD><TD class=alignCenter>0</TD></TR><TR><TH id=dr8 class=alignLeft headers=dr1>% <SUP>1</SUP></TH><TD class=alignCenter>0.0%</TD><TD class="alignCenter bg-colour-blue">0.0%</TD><TD class="alignCenter bg-colour-blue">0.0%</TD><TD class="alignCenter bg-colour-blue">0.0%</TD><TD class=alignCenter>0.0%</TD><TD class=alignCenter>0.0%</TD></TR></TBODY></TABLE>
Table 5 - Cumulative numbers of adult hospitalizations with influenza reported by the PCIRN-SOS network, Canada, 2014-15
PCIRN-SOS surveillance for the 2014-15 season has not yet begun.
<!-- <table cellspacing="0" cellpadding="2" border="1" class="widthFull"> <caption class="alignCenter"> Table 5 - Cumulative numbers of adult hospitalizations with influenza reported by the PCIRN-SOS network, Canada, 2014-15 </caption> <thead> <tr class="bg-colour-yellow"> <th rowspan="3" id="er1">Age groups </th> <th id="ec1" colspan="6" class="noWrap">Cumulative (data not yet available for 2014-15)<sup>*</sup></th> </tr> <tr class="bg-colour-yellow"> <th colspan="4" id="ec2" 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="bg-colour-blue" headers="ec1 ec2">A(H1) pdm09 </th> <th id="ec5" class="bg-colour-blue" headers="ec1 ec2">A(H3) </th> <th id="ec6" class="bg-colour-blue" 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 colspan="7" class="fontSize85"><sup id="footnote_t5_1">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.
<sup id="t5_star">*</sup>Two cases for which the influenza type has not yet been reported, and four cases for which the age-group was not reported, are not included in Table 5.</td> </tr> </tfoot> <tbody> <tr> <th id="er2" class="alignLeft" headers="er1">16-20 </th> <td class="alignCenter" headers="er1 er2 ec1 ec2 ec3"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec2 ec4"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec2 ec5"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er2 ec1 ec8"> 0</td> </tr> <tr> <th id="er3" class="alignLeft" headers="er1">20-44 </th> <td class="alignCenter" headers="er1 er3 ec1 ec2 ec3"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec2 ec4"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec2 ec5"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er3 ec1 ec8"> 0</td> </tr> <tr> <th id="er4" class="alignLeft" headers="er1">45-64 </th> <td class="alignCenter" headers="er1 er4 ec1 ec2 ec3"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec2 ec4"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec2 ec5"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er4 ec1 ec8"> 0</td> </tr> <tr> <th id="er5" class="alignLeft" headers="er1">65+ </th> <td class="alignCenter" headers="er1 er5 ec1 ec2 ec3"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec2 ec4"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec2 ec5"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er5 ec1 ec8"> 0</td> </tr> <tr> <th id="er6" class="alignLeft" headers="er1">Total </th> <td class="alignCenter" headers="er1 er6 ec1 ec2 ec3"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er6 ec1 ec2 ec4"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er6 ec1 ec2 ec5"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er6 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er6 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er6 ec1 ec8"> 0</td> </tr> <tr> <th id="er7" class="alignLeft" headers="er1">% <sup>1</sup> </th> <td class="alignCenter" headers="er1 er7 ec1 ec2 ec3"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er7 ec1 ec2 ec4"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er7 ec1 ec2 ec5"> 0</td> <td class="bg-colour-blue alignCenter" headers="er1 er7 ec1 ec2 ec6"> 0</td> <td class="alignCenter" headers="er1 er7 ec1 ec7"> 0</td> <td class="alignCenter" headers="er1 er7 ec1 ec8"> 0</td> </tr> </tbody> </table>-->Figure 8 - Number of cases of influenza reported by sentinel hospital networks, by week, Canada, 2014-15
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)
* See footnote above following the section related to PCIRN-SOS data.
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, 2014-15
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)
Top of Page
Provincial/Territorial Influenza Hospitalizations and Deaths
No laboratory-confirmed influenza-associated hospitalizations have been reported from participating provinces and territories* since the start of the 2014-15 season.
* Note: Influenza-associated hospitalizations are not reported to PHAC by the following Provinces and Territory: BC, NU, QC, and NB. Only hospitalizations that require intensive medical care are reported by Saskatchewan. ICU admissions are not distinguished among hospital admissions reported from Ontario. Data may also include cases reported by the IMPACT and PCIRN networks.
<TABLE class=widthFull border=1 cellSpacing=0 cellPadding=2><CAPTION id=t6 class=alignCenter>Table 6 - Cumulative number of hospitalizations with influenza reported by the participating provinces and territories, Canada, 2014-15</CAPTION><THEAD><TR class=bg-colour-yellow><TH id=t4hc1 rowSpan=3>Age groups </TH><TH id=t4hc2 colSpan=6>Cumulative (24 Aug. 2014 to 6 Sep. 2014)</TH></TR><TR class=bg-colour-yellow><TH id=t4hc3 colSpan=4 headers=t4hc2>Influenza A</TH><TH id=t4hc4 headers=t4hc2>B</TH><TH id=t4hc5 headers=t4hc2>Influenza A and B</TH></TR><TR class=bg-colour-grey-light><TH id=t4hc6 headers="t4hc2 t4hc3">A Total</TH><TH id=t4hc7 class=bg-colour-blue headers="t4hc2 t4hc3">A(H1) pdm09</TH><TH id=t4hc8 class=bg-colour-blue headers="t4hc2 t4hc3">A(H3)</TH><TH id=t4hc9 class=bg-colour-blue headers="t4hc2 t4hc3">A (UnS)</TH><TD class=alignCenter headers="t4hc2 t4hc4">Total</TD><TD class=alignCenter headers="t4hc2 t4hc5"># (%)</TD></TR></THEAD><TFOOT><TR><TD class=fontSize85 colSpan=8><SUP id=footnote_t6_1>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=t4hr1 class=alignLeft headers=t4hc1>0-4 years</TH><TD class=alignCenter headers="t4hr1 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr1 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr2 class=alignLeft headers=t4hc1>5-19 years</TH><TD class=alignCenter headers="t4hr2 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr2 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr3 class=alignLeft headers=t4hc1>20-44 years </TH><TD class=alignCenter headers="t4hr3 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr3 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr4 class=alignLeft headers=t4hc1>45-64 years </TH><TD class=alignCenter headers="t4hr4 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr4 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr5 class=alignLeft headers=t4hc1>65+ years </TH><TD class=alignCenter headers="t4hr5 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr5 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr6 class=alignLeft headers=t4hc1>Unknown</TH><TD class=alignCenter headers="t4hr6 t4hc2 t4hc3 t4hc6">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc3 t4hc7">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc3 t4hc8">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr6 t4hc2 t4hc5">0 (0%)</TD></TR><TR><TH id=t4hr7 class=alignLeft headers=t4hc1>Total </TH><TD class=alignCenter headers="t4hr7 t4hc2 t4hc3 t4hc6">0</TD><TD class="alignCenter bg-colour-blue" headers="t4hr7 t4hc2 t4hc3 t4hc7">0</TD><TD class="alignCenter bg-colour-blue" headers="t4hr7 t4hc2 t4hc3 t4hc8">0</TD><TD class="alignCenter bg-colour-blue" headers="t4hr7 t4hc2 t4hc3 t4hc9">0</TD><TD class=alignCenter headers="t4hr7 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr7 t4hc2 t4hc5">0</TD></TR><TR><TH id=t4hr8 class=alignLeft headers=t4hc1>Percentage <SUP>1</SUP></TH><TD class=alignCenter headers="t4hr8 t4hc2 t4hc3 t4hc6">0%</TD><TD class="alignCenter bg-colour-blue" headers="t4hr8 t4hc2 t4hc3 t4hc7">0%</TD><TD class="alignCenter bg-colour-blue" headers="t4hr8 t4hc2 t4hc3 t4hc8">0%</TD><TD class="alignCenter bg-colour-blue" headers="t4hr8 t4hc2 t4hc3 t4hc9">0%</TD><TD class=alignCenter headers="t4hr8 t4hc2 t4hc4">0</TD><TD class=alignCenter headers="t4hr8 t4hc2 t4hc5">0%</TD></TR></TBODY></TABLE>
See additional data on Reported Influenza Hospitalizations and Deaths in Canada: 2009-10 to 2014-15 on the Public Health Agency of Canada website.
.../
Comment