Canada: FluWatch Report from PHAC

[cartski]

Summary of FluWatch Findings for the
Week ending August 15, 2009

The overall influenza activity decreased this week; the reported activity level (2 regions reported localized activity), the proportion of influenza positive tests (4.2%), the overall number of influenza outbreaks (1) are lower compared to last week. The national ILI consultation rate (15 consultations per 1,000 visits) remains similar to the previous week.

As of August 15, 2009, a total of 1,422 hospitalized cases and 275 cases admitted to an intensive care unit (ICU) had been reported to the Public Health Agency of Canada.

This week, four new deaths were reported for a total of 70 deaths since the beginning of the pandemic. 90% of the hospitalized cases and more than 85% of the deaths have been reported by only 4 provinces (Alberta, Manitoba, Ontario and Quebec).

The overall Pandemic (H1N1) 2009 influenza activity is still decreasing across Canada.

Those under 15 have the highest rates of hospitalization, however mortality is highest in those 45 years and older. Mortality is also elevated in the population under one year of age.

The proportion of females affected, the median age and the proportion of cases with underlying medical conditions increase with increasing severity of illness (on a gradient from all cases, to hospitalized cases, to ICU-admitted cases, to deaths).

http://www.phac-aspc.gc.ca/fluwatch/08-09/w32_09/index-eng.php

Many more graphs and much detail in the main report in the link above.

J.

 

[Rainbow Lake]

Re: Canada: FluWatch Report from PHAC

Summary of FluWatch Findings for the
Week ending August 15, 2009

The overall influenza activity decreased this week; the reported activity level (2 regions reported localized activity), the proportion of influenza positive tests (4.2%), the overall number of influenza outbreaks (1) are lower compared to last week. The national ILI consultation rate (15 consultations per 1,000 visits) remains similar to the previous week.

As of August 15, 2009, a total of 1,422 hospitalized cases and 275 cases admitted to an intensive care unit (ICU) had been reported to the Public Health Agency of Canada.

This week, four new deaths were reported for a total of 70 deaths since the beginning of the pandemic. 90% of the hospitalized cases and more than 85% of the deaths have been reported by only 4 provinces (Alberta, Manitoba, Ontario and Quebec).

The overall Pandemic (H1N1) 2009 influenza activity is still decreasing across Canada.

Those under 15 have the highest rates of hospitalization, however mortality is highest in those 45 years and older. Mortality is also elevated in the population under one year of age.

The proportion of females affected, the median age and the proportion of cases with underlying medical conditions increase with increasing severity of illness (on a gradient from all cases, to hospitalized cases, to ICU-admitted cases, to deaths).

http://www.phac-aspc.gc.ca/fluwatch/08-09/w32_09/index-eng.php

Many more graphs and much detail in the main report in the link above.

J.

Most Canadian schools will commence on 8 September. We can likely consider the August and first week of September stats as baseline. Judging from what has been happening as school started in the southern US states, we will likely see an upsurge in Canada. From August 16 to August 22, 2009 (week 33), there was one death in all of Canada (Ontario) and only 21 hospitalized H1N1 cases. I guess that is the baseline. I will hold my breath for the last three weeks of September.

The link to the Canada report for Week 33 (16-22 August 2009) is:

http://www.phac-aspc.gc.ca/fluwatch/08-09/w33_09/index-eng.php

Summary of FluWatch Findings for the
Week ending August 22, 2009

The overall influenza activity slightly decreased this week; relatively low but higher than expected at this time of the year.

As of August 22, 2009, a total of 1,441 hospitalized cases and 278 cases admitted to an intensive care unit (ICU) had been reported to the Public Health Agency of Canada. This week, one new death was reported for a total of 71 deaths since the beginning of the pandemic. Again this week, approximately 90% of the hospitalized cases and more than 85% of the deaths have been reported by only 4 provinces (Alberta, Manitoba, Ontario and Quebec).

The overall Pandemic (H1N1) 2009 influenza activity is still decreasing across Canada. The peak period for symptom onset date or specimen collection date occurred between weeks 22 to 24 (May 31, 2009 and June 20, 2009).
The proportion of females affected, the median age and the proportion of cases with underlying medical conditions increased with severity of illness (on a gradient from all cases, to hospitalized cases, to ICU-admitted cases, to deaths).
Those under 15 had the highest rates of hospitalization, however mortality was highest in those 45 years and older. Mortality was also elevated in the population under one year of age.