Re: AFD - H1N1 in Canada
Cases of H1N1 Flu Virus in Canada
The Public Health Agency of Canada (PHAC) is committed to sharing information about H1N1 flu virus cases with Canadians. Confirmed cases are posted Monday, Wednesday and Friday at 16:00 EDT.
As of May 25 2009, a total of 921 laboratory-confirmed cases of H1N1 flu virus have been reported in 9 provinces and 1 territory in Canada (see
Table 1 below).
<TABLE id=table-cases cellSpacing=0 cellPadding=3 summary="Table 1: Summary of laboratory-confirmed cases of H1N1 flu virus (Human Swine Flu) reported to the Public Health Agency of Canada, by the provinces and territories"><CAPTION>
Table 1: Summary of laboratory-confirmed cases of H1N1 flu virus reported to the Public Health Agency of Canada, by the provinces and territories as of May 25, 2009 at 15:00 EDT. </CAPTION><THEAD><TR><TH scope=col>Province / Territory</TH><TH scope=col>
NEW Laboratory-Confirmed Cases as of May 25, 2009</TH><TH scope=col>
TOTAL Laboratory-confirmed Cases (including today?s cases)</TH><TH scope=col>Total
Deaths<SUP>1 </SUP></TH></TR></THEAD><TBODY><TR><TD scope=row>British Columbia</TD><TD vAlign=bottom>
0
</TD><TD vAlign=bottom>
115
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Alberta</TD><TD vAlign=bottom>
2
</TD><TD vAlign=bottom>
96
</TD><TD class=alignCenter>1</TD></TR><TR><TD scope=row>Saskatchewan</TD><TD vAlign=bottom>
14
</TD><TD vAlign=bottom>
91
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Manitoba</TD><TD vAlign=bottom>
NR
</TD><TD vAlign=bottom>
6
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Ontario<SUP>2 </SUP></TD><TD vAlign=bottom>
58
</TD><TD vAlign=bottom>
352
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Quebec</TD><TD vAlign=bottom>
42
</TD><TD vAlign=bottom>
185
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>New Brunswick</TD><TD vAlign=bottom>
0
</TD><TD vAlign=bottom>
2
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Nova Scotia</TD><TD vAlign=bottom>
0
</TD><TD vAlign=bottom>
70
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Prince Edward Island</TD><TD vAlign=bottom>
0
</TD><TD vAlign=bottom>
3
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Newfoundland</TD><TD vAlign=bottom>
0
</TD><TD vAlign=bottom>
0
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Yukon</TD><TD vAlign=bottom>
0
</TD><TD vAlign=bottom>
1
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Northwest Territories</TD><TD vAlign=bottom>
0
</TD><TD vAlign=bottom>
0
</TD><TD class=alignCenter>0</TD></TR><TR><TD scope=row>Nunavut</TD><TD vAlign=bottom>
0
</TD><TD vAlign=bottom>
0
</TD><TD class=alignCenter>0</TD></TR><TR class=totals><TD scope=row>Total</TD><TD class=alignCenter>
116</TD><TD class=alignCenter>
921</TD><TD class=alignCenter>1</TD></TR></TBODY><TBODY><TR><TD class=footer colSpan=4><SUP>1 </SUP>Number of deaths is included in the number of cases
<SUP>2</SUP> Ontario announced in a press release today that a person with H1N1 flu virus died on May 23, 2009. The case numbers officially reported by Ontario to PHAC today are current up to May 22 at 8:30 a.m. Therefore, the death reported today is not currently reflected in the national case count, but will be in the next update on May 27 after it is officially reported to PHAC.
</TD></TR></TBODY></TABLE>Note: Manitoba did not report their confirmed cases by 15:00 EDT
As of May 25, 2009, the average age reported is 22 years or younger (median: 17 years; range: <1? 86 years). To date 29 hospitalizations, including one death, have been reported among laboratory-confirmed cases. The most recent date of symptom onset is May 16, 2009.
The following graph, also known as an epidemic curve, is up to date as of May 22, 2009
. The graph illustrates the course of the current H1N1 flu virus outbreak in Canada. It shows the date when symptoms of H1N1 flu virus began for each of the laboratory-confirmed cases.
<SCRIPT type=text/javascript>var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." :"http://www.");document.write(unescape("%3Cscript src='" + gaJsHost +"google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); </SCRIPT><SCRIPT src="http://www.google-analytics.com/ga.js" type=text/javascript></SCRIPT>
Figure 1. Number of Laboratory-Confirmed H1N1 Flu Virus Cases in Canada by Date of Onset as reported to the Public Health Agency of Canada as of May 22, 2009 15:00 EDT (N=557).
Source: Provincial/Territorial Ministries of Health
When interpreting the graph, it should be noted that:
- The graph is prepared retrospectively and is updated daily using the information available at that time. It is not as current as Table 1 that contains the summary of laboratory-confirmed cases, as information about the date of onset of symptoms takes more time to compile.
- There is always a delay from the date that an illness starts to the date the case is reported to public health authorities. This delay is the result of the time required for patients to see their physicians, laboratory testing to be completed, and results to be communicated to public health authorities.
http://www.phac-aspc.gc.ca/alert-alerte/swine-porcine/surveillance-eng.php
