Weekly West Nile Virus Update
The WNV Story Map may not always be updated at the same time as the WNV Surveillance Statistics website and the Weekly Update. Please check back later if the Story Map does not align with the Weekly Surveillance Statistics and Weekly Update.
October 17, 2025
Two confirmed and one probable human West Nile virus (WNV) cases were reported since the last update. To date, three confirmed human WNV cases (including one related to travel outside of Canada), one probable human WNV case, 148 WNV-positive Culex tarsalis pools, 28 WNV-positive birds and two WNV-positive horses have been identified in 2025.
Adult mosquito surveillance for West Nile virus, and weekly updates to the interactive map above have concluded for 2025. This is the last WNV written update for 2025. Any further updates on human WNV cases will be posted at https://www.gov.mb.ca/health/wnv/stats.html.
