SAVANNAH, Ga. (WTOC) - The Coastal Health District is alerting residents of Chatham and Bryan Counties to take precautions against mosquito bites after a chicken in the area tested positive for Eastern Equine Encephalitis (EEE, pronounced “triple-E”).

EEE is a mosquito-borne virus that causes swelling of the brain. In horses, it is fatal 70 to 90 percent of the time.

In a press release, the Coastal Health District said that Chatham County Mosquito Control routinely tests mosquitoes and chickens throughout the county, checking for the presence of mosquito-borne viruses that can be transmitted to humans through mosquito bites.

Mosquito control was notified of a positive test result in a chicken on September 9, 2025.

The chicken was located in the southwestern area of Chatham County, near

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