Florida Confirms Twelfth Equine EEE Case for 2016

The affected horse, an unvaccinated 8-year-old mustang mare, was euthanized July 7.
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The Equine Disease Communication Center (EDCC) has reported that another case of Eastern equine encephalitis (EEE) have been confirmed in a Florida horse.

“On July 15, a new EEE case was confirmed in Jackson County, Florida,” the EDCC statement said. “The 8-year-old mustang mare had no known vaccine history and no recent travel history. Clinical signs began on July 6 and the horse was euthanized for humane reasons the following day.”

This is the first confirmed EEE case in Jackson County and the twelfth confirmed case in Florida for 2016.

A viral disease, EEE affects the central nervous system and is transmitted to horses by infected mosquitoes. Clinical signs of EEE include moderate to high fever, depression, lack of appetite, cranial nerve deficits (facial paralysis, tongue weakness, difficulty swallowing), behavioral changes (aggression, self-mutilation, or drowsiness), gait abnormalities, or severe central nervous system signs, such as head-pressing, circling, blindness, and seizures. The course of EEE can be swift, with death occurring two to three days after onset of clinical signs despite intensive care; fatality rates reach 75-80% among horses. Horses that survive might have long-lasting impairments and neurologic problems

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Written by:

Erica Larson, former news editor for The Horse, holds a degree in journalism with an external specialty in equine science from Michigan State University in East Lansing. A Massachusetts native, she grew up in the saddle and has dabbled in a variety of disciplines including foxhunting, saddle seat, and mounted games. Currently, Erica competes in eventing with her OTTB, Dorado.

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