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West Nile Virus (WNV)

West Nile virus West Nile Virus (WNV)  
is considered to be the most widely distributed vector-borne disease in North America, and has now been detected in B.C. From 2002 through 2012 there have been 5094 clinical cases (i.e. showing symptoms) of WNV infection in Canada. It is only one of many diseases around the world that are spread by mosquitoes.  Although most people who get infected will not feel any symptoms, the disease can be serious for one person out of about every 150 who are infected. Fortunately, it is fairly easy to lower your risk of infection, by avoiding mosquito bites.


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Last Updated: June 12, 2014