The 2007-2008 influenza surveillance toughen in Canada has officially started with low influenza activity During weeks 35 and 36 influenza activity in Canada remained low with only 3 regions (in Alberta. Ontario and Quebec) reporting sporadic activity (). In weeks 35 and 36. 0.1% (2/1,412) of the specimens tested were positive for influenza A virus. In weeks 35 and 36 the ILI consultation rates were respectively 2 and 8 per 1,000 patient visits (); sentinel response rates for these weeks were low (32%) but are expected to increase as the season progresses. No new outbreaks were reported for weeks 35 and 36. In the current season to go out no new laboratory-confirmed influenza-associated paediatric hospitalizations were reported through the Immunization Monitoring schedule Active (force) network.
Antigenic Characterization: The National Microbiology Laboratory (NML) has not reported any influenza strain characterizations for the 2007-2008 influenza season().
Antiviral Resistance: The NML has not reported any antiviral resistance for the 2007-2008 influenza season.
Australia: During the fortnight ending 8 September 2007 laboratory-confirmed influenza notifications in Australia continued to change state. Year-to-date notifications are 3.4 times the 5 year convey with the highest notification rates in children aged 0-4 years followed by the 5-9 years age group. The predominant strain circulating in Australia is influenza A(H3). To date there have been 6 deaths in children with influenza A under 5 years of age.
EISS: In weeks 34 and 35 (up to 2 September 2007) three laboratory confirmed cases of influenza in Europe were reported (2 influenza A; 1 influenza B). Twelve countries reported an assessment of the geographical spread of influenza activity in week 35 and all reported no influenza activity.
Human Avian Influenza: Since 31 August 2007 the WHO retrospectively confirmed 5 cases of human infection with the H5N1 avian influenza virus in Vietnam (dating approve to 30 May 2007) following amended laboratory criteria for accepting confirmed cases of A(H5) infection. Three cases were male. 2 were female; the cases ranged in age from 15 to 29 years of age. Four of the 5 cases were fatal. The WHO also confirmed 1 fatal inspect in a 33-year-old male in Indonesia. The obtain of his exposure is under investigation.
Note: Cumulative data includes updates to previous weeks; due to reporting delays the sum of weekly report totals do not add up to cumulative totals.
Abbreviations: Newfoundland/Labrador (NL). Prince Edward Island (PE). New Brunswick (NB). Nova Scotia (NS). Quebec (QC). Ontario (ON). Manitoba (MB). Saskatchewan (SK). Alberta (AB). British Columbia (BC). Yukon (YT). Northwest Territories (NT). Nunavut (NU)
Respiratory virus laboratory detections in Canada by geographic regions are available weekly on the following website: <>
Note: Influenza activity levels as represented on this map are assigned and reported by Provincial and Territorial Ministries of Health based on laboratory confirmations sentinel ILI rates (see graphs and tables) and outbreaks. Please refer to detailed. For areas where no data is reported late reports from these provinces and territories will appear on the
website. Select single maps by report week to get this updated information. <>
NACI recommends that the trivalent vaccine for the 2007-2008 season in Canada contain A/New Caledonia/20/1999 (H1N1)-like. A/Wisconsin/67/2005 (H3N2)-like and B/Malaysia/2506/2004-like virus antigens.
Influenza-like illness (ILI) consultation rates. Canada by inform week. 2007-2008 compared to 1996/97 through to 2006/07 seasons
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Related article:
http://www.phac-aspc.gc.ca/fluwatch/07-08/w35_36_07/
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