Wisconsin reports its first West Nile virus case as the virus spreads in several states.

The Wisconsin DHS reported the state's first West Nile virus case in Barron County, with positive mosquito tests in Milwaukee and Lafayette Counties. The virus spreads through mosquito bites, causing mild to severe symptoms like fever and disorientation. Health officials advise using repellent, covering up, and removing standing water to prevent bites. Similar cases and positive mosquito tests have been reported in Indiana, Texas, and Colorado, with health departments taking measures to control mosquito populations and alerting the public on preventive actions.