ID News: January 2016


Volume 42-1, January 7, 2016: Emerging infectious diseases

ID News

Human cases of West Nile virus in Canada, 2015

Source: Public Health Agency of Canada. Surveillance of West Nile virus.

During the West Nile virus season (mid-April to October), Canada conducts ongoing human case surveillance across the country. Monitoring West Nile virus nationally is a joint effort between the Government and its partners, including provincial and territorial ministries of health, First Nations authorities and blood supply agencies.

The Government relies on the provinces and territories to report the number of West Nile virus cases. To accurately reflect the annual occurrence of West Nile virus cases in Canada, health professionals need to remain vigilant in diagnosing West Nile virus, and reporting cases to their public health regional authorities. Case definitions can be accessed at: National Surveillance for West Nile virus.

West Nile virus clinical cases in Canada, reported as of December 19, 2015
Province/Territory Total number of clinical cases
Newfoundland and Labrador 0
Prince Edward Island 0
Nova Scotia 0
New Brunswick 0
Quebec 40
Ontario 33
Manitoba 5
Saskatchewan 0
Alberta 0
British Columbia 0
Yukon 0
North West Territories 0
Nunavut 0
Canada 78
Cases of West Nile virus reported annually, 2002 - 2015
Year Number of human cases
2002 414
2003 1481
2004 25
2005 225
2006 151
2007 2215
2008 36
2009 13
2010 5
2011 101
2012 428
2013 115
2014 21
2015 78
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