The Equine Disease Communication Center (EDCC) reported that animal health officials in Florida and Wisconsin have confirmed new cases of Eastern equine encephalitis (EEE) and officials in Washington have confirmed new West Nile virus (WNV) cases in horses in those states.

In Wisconsin, an unvaccinated 12-year-old Quarter Horse mare from Vilas County is the state’s fourth equine EEE case for 2016.

“The mare was febrile (had a fever), unable to rise, and unresponsive with various neurologic signs including extensor rigidity, struggling, nystagmus (involuntary eye movement), intermittent tonic/clonic activity (rapid succession of muscle contraction and relaxation; often associated with seizures), and frequent tooth grinding,” the EDCC said. “The attending veterinarian humanely euthanized the mare.”

In Florida, the EDCC reported that a new EEE case was confirmed on Sept. 19

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