West Nile Virus activity - Canada

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Source: Health Canada, Surveillance Data 2004 Program, Wed 8 Sep 2004 [edited]<http://www.hc-sc.gc.ca/pphb-dgspsp/wnv-vwn/index.html>Surveillance Data 2004 Data - As of Wed 8 Sep 2004---------------------------------------------------Human Cases (As of 3 Sep 2004)------------------------------As of 3 Sep 2004 the number of human cases in Canada has been revised and the total is now 17 confirmed cases, an increase of 2 cases overall since 1 Sep 2004. There have been 2 confirmed cases in Manitoba (one neuroinvasive, one fever), 7 in Ontario (up one -- one neuroinvasive, one fever, and 5 unspecified), one in Quebec (down one -- fever), and 7 in Saskatchewan (up 2 -- all fever).Dead Bird Test Results (As of Wed 8 Sep 2004)----------------------------------------------Province / Tested / Presumed Positive / Confirmed PositiveNewfoundland & Labrador / 81 / 0 / 0Prince Island / 99 / 0 / 0Nova Scotia / 418 / 0 / 0New Brunswick /450 / 0 / 0Quebec / 749 / 3 / 83Ontario / 1333 / 1 / 229Manitoba / 316 / 0 / 16Saskatchewan / 362 / 0 / 29Alberta / 608 / 0 / 4British Columbia / 1313 / 0 / 0Yukon / 11 / 0 / 0Northern Territories / 10 / 0 / 0Nunavut / 2 / 0 / 0 /Canada Total / 5752 /4 / 361[An additional 128 dead birds have been tested since the figures released 7 days ago on Wed 1 Sep 2004 and posted in the preceding update. The number of confirmed West Nile virus-positive birds has increased from 325 to 361 (plus 4 classified as presumed positives). Alberta, Manitoba, Ontario, Quebec and Saskatchewan remain the only provinces to report West Nile virus-positive birds so far in 2004. - Mod.CP]Equines and other domestic animals----------------------------------2 more presumptive equine cases have been recorded since the last report on Wed 1 Sep 2004. The 2 new cases were reported in Alberta and Ontario, bringing the total of presumptive cases for all Canada to 6; 2 cases in Alberta, 3 cases in Ontario, and one case in Quebec.Mosquito Pools--------------As of Wed 8 Sep 2004, 126 mosquito pools (an increase of 15) have tested West Nile virus-positive: one in Alberta, 54 in Manitoba, 41 in Ontario, 5 in Quebec and 25 in Saskatchewan. These 5 are the only provinces to report WNV-positive mosquito pools in 2004 so far.[The provinces of Newfoundland and Labrador, Prince Island, Nova Scotia, New Brunswick, British Columbia, Yukon Territory, Northwest Territories and Nunavut have not reported confirmed cases of West Nile virus in 2004 so far. - Mod.CP]