A horse in Okeechobee County, Florida, has tested positive for equine infectious anemia (EIA), the Equine Disease Communication Center (EDCC) reported Feb. 11.

“The (affected premises) and all horses with 200 yards surrounding the (premises) are currently under quarantine until further testing of the animals are complete,” the EDCC statement read. “An epidemiological trace is underway.”

This is the first EIA case for both Okeechobee County and the state of Florida for 2016, the EDCC said.

Equine infectious anemia is a viral disease that attacks horses’ immune systems and is most commonly detected with the Coggins test. The virus is transmitted through the exchange of body fluids from an infected to a noninfected animal, often by blood-feeding insects such as horseflies, and more rarely through the use of blood-contaminated instruments or needles.

Once an animal is infected with EIA, it is infected for life and can be a reservoir for the spread of disease. Obvious clinical signs of the disease include progressive loss of condition along with muscle weakness and poor stamina. An affected horse also could show fever, depression, and anemia.

TheHorse.com will provide updates as additional information becomes available.