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Eastern Equine Encephalitis

Eastern equine encephalitis is an illness spread by the bite of an infected mosquito. Mosquitoes that spread Eastern equine encephalitis can be found throughout Wisconsin. Not all mosquito bites will make you sick, but it is still important to take steps to protect yourself and your family while enjoying time outdoors. Eastern equine encephalitis is preventable.

General information on Eastern equine encephalitis, including information on signs and symptoms, treatment, and resources.

Charts and map with Eastern equine encephalitis data.


Information for local health departments, health care providers, or those looking for information on reporting, surveillance, or diagnosis of Eastern equine encephalitis.

Get tips on preventing mosquito bites.

Questions about illnesses spread by mosquitoes? Contact us!
Phone: 608-267-9003 | Fax: 608-261-4976


Last revised June 15, 2022