Abbreviations:

NL - Newfoundland/Labrador
PE - Prince Edward Island
NB - New Brunswick
NS - Nova Scotia
QC - Quebec
ON - Ontario
MB - Manitoba
SK - Saskatchewan
AB - Alberta
BC - British Columbia
YT - Yukon
NT - Northwest Territories
NU - Nunavut

* If West Nile Virus infection is reported to the PHAC from any area of a health region, that entire health region is shaded. For more information, please visit West Nile Virus National Surveillance Report

For information on WNV activity in the United States please see:
1) Centers for Disease Control and Prevention (CDC) WNV table
2) CDC WNV maps