New EEE, WNV Cases Confirmed in New York Horses

The New York State Department of Agriculture and Markets confirmed EEE in a 3-month-old filly from Oswego County and WNV in three horses from Chenango, Livingston, and Washington counties.
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new EEE WNV cases confirmed in New York horses
Both EEE and WNV are transmitted to horses via bites from infected mosquitoes. | Photo: iStock

The Equine Disease Communication Center (EDCC) reported Oct. 19 that New York animal health officials have confirmed new cases of Eastern equine encephalitis (EEE) and West Nile virus (WNV).

The New York State Department of Agriculture and Markets (NYSDAM) confirmed the EEE case in a 3-month-old filly from Oswego County, who developed clinicals signs around Sept. 24.

“She exhibited mild symptoms of ataxia for over a week before a vet was contacted,” the EDCC said. “On Oct. 3, she was euthanized. Her brain was submitted for rabies, EEE, and WNV testing. Her brain sample was positive for EEE virus

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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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