08/19/2026
Eastern Equine Encephalitis Confirmed in Michigan
The Michigan Department of Health and Human Services (MDHHS) has confirmed a locally acquired case of Eastern equine encephalitis (EEE) in a Roscommon County resident. This is the first human case of EEE reported in Michigan since 2021.
EEE is a rare but serious mosquito-borne disease. The best way to protect yourself and your family is to prevent mosquito bites and reduce mosquito breeding areas around your home.
Take these precautions:
Use an EPA-registered insect repellent containing DEET, picaridin, IR3535, oil of lemon eucalyptus or para-menthane-diol, or 2-undecanone. Follow the product label.
Wear long sleeves, long pants, shoes and socks when outdoors.
Make sure doors and windows have tight-fitting screens.
Remove standing water from items around your home, including birdbaths, pools, tires and containers.
Use mosquito netting when sleeping outdoors or in areas without window screens.
Do not use insect repellent on children under 2 months old. Use protective clothing and mosquito netting instead.
EEE can cause fever, headache, chills and nausea. In severe cases, the infection can progress to inflammation of the brain, causing disorientation, seizures or coma.
For more information and current Michigan surveillance updates:
Michigan EEE Information: https://www.michigan.gov/emergingdiseases/home/eastern-equine-encephalitis
CDC EEE Information: https://www.cdc.gov/easternequineencephalitis/
Weekly Michigan Arboviral Report: https://www.michigan.gov/emergingdiseases
Protect yourself and your family by taking steps to prevent mosquito bites, especially when spending time outdoors.