Michigan confirms first human EEE case since 2021, urges mosquito precautions

Michigan health officials confirmed the state's first human case of Eastern Equine Encephalitis since 2021 in a Roscommon County resident, urging statewide precautions against mosquito bites. The rare disease has a 30% fatality rate among those who become ill. The Michigan Department of Health and Human Services announced the case Wednesday, noting EEE spreads through infected mosquito bites. Symptoms include sudden fever, chills, nausea, and body aches, potentially progressing to severe encephalitis, seizures, or paralysis. Children under 15 and adults over 50 face the highest risk. State officials are monitoring mosquitoes, pets, and wildlife, with additional trapping underway in Roscommon County. Of 5,420 mosquito pools tested in 2026, 73 were positive for arboviruses. Officials recommend using EPA-approved insect repellents, wearing long sleeves, and eliminating standing water around homes.