(WSAW) -The Wisconsin Department of Health Services has confirmed the state’s first West Nile virus activity of the year after mosquitoes collected in Milwaukee County and a wild bird in Bayfield County tested positive for the virus.
Health officials said the findings indicate infected mosquitoes are present in Wisconsin and could spread the virus to animals and people. No human cases have been reported in Wisconsin so far in 2026.
“Monitoring mosquitoes and birds for West Nile virus helps public health experts understand when and where the virus is active, so that we can give timely information to communities across the state,” said Paula Tran, the state health officer and administrator of the Division of Public Health…