Nine measles cases confirmed in Oconto County mark Wisconsin's first outbreak of the year.

Nine measles cases were confirmed in Oconto County, Wisconsin, marking the state's first cases of the year. All cases were linked to a common source during travel outside the state. The risk to the public is considered low, and health officials are working to notify potentially exposed individuals without disclosing further details due to privacy laws. Measles is highly contagious, with up to 90% of unvaccinated people near an infected person at risk of contracting it.