West Nile Virus Detected in Montana

State and local health officials are reporting the first West Nile Virus (WNV) detection of the year in mosquitoes sampled from Blaine County. No humans or horses have tested positive for WNV yet this season.

Infected mosquitoes can transmit WNV when they bite, and increased risk of WNV transmission to humans and horses is expected to continue through October – or as long as mosquitoes are active...