The Maine Center for Disease Control and Prevention in the Maine Department of Health and Human Services and the Maine Department of Agriculture’s Animal Health and Industry Division announced last week that a 4-year-old Quarter Horse gelding euthanized in the town of Troy (Waldo County) tested positive for Eastern equine encephalitis (EEE).

Eastern equine encephalitis is a virus that is transmitted through the bite of an infected mosquito that has picked up the virus by feeding on an infected bird. The disease was first detected in Maine in 2005 among some horses, mosquitoes, and birds in York County