Eastern Equine Encephalitis
Eastern equine encephalitis (EEE) is a mosquito-borne viral disease. EEE virus (EEEV) occurs in the eastern half of the United States where it causes disease in humans, horses, and some bird species. Because of the high mortality rate, EEE is regarded as one of the most serious mosquito-borne diseases in the United States. Many persons infected with EEE will have no obvious symptoms. In those persons who do develop illness, symptoms of EEE range from mild-flu like illness to inflammation of the brain, coma and death.
There is no specific treatment for EEE. This disease is best prevented by avoiding exposure to mosquitoes.
Maine has reported two residents with confirmed EEE to date, one in 2014 and one in 2015. One of the cases was fatal.
On this page:
- EEE Fact Sheet (PDF)
- Mosquito-borne Diseases in Maine Webinar
- Personal Protection Guide
- Eastern Equine Encephalitis Q&A
- Human Cases (all as pdfs*) 2005 2006 2007 2008 2009 2010 Cumulative
- Animal Aggregated Cases (all as pdfs*) 2005 2006 2007 2008 2009 2010 Cumulative
- Northeast Region Including Canada (pdf*)
- Eastern Equine Encephalitis
- Lyme Disease
- West Nile Virus
- Yellow Fever