Wisconsin, Ontario Horses Test Positive for EEE, WNV

Wisconsin and Ontario have now confirmed 24 and two EEE and 22 and 21 WNV cases in horses, respectively.
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The Equine Disease Communication Center (EDCC) has reported that horses in Wisconsin and Ontario, Canada, have tested positive for Eastern equine encephalitis (EEE) and West Nile virus (WNV).

Wisconsin—On Oct. 30 the EDCC reported that the Wisconsin Department of Agriculture, Trade, and Consumer Protection (WDATCP) confirmed that an unvaccinated 17-year-old Appaloosa-cross mare from Marathon County had tested positive for EEE. She became recumbent (unable to rise) on Oct. 20.

“The attending veterinarian saw the mare on Oct. 20,” the EDCC statement said. “He reported that she had been high-stepping and star-gazing prior to recumbency. In recumbency, he reported that she was twitching and acting delirious. The veterinarian sampled and treated her with anti-inflammatories and steroids; he said she got up and was showing neurologic signs, but is recovering.”

The EDCC said this is Wisconsin’s 24th case of EEE reported this year

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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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