Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.

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West Nile Virus

Montgomery, Tompkins, Chenango, Chautauqua Counties, NY

Alert ID: 1090

October 12, 2018

Source: New York State Department of Agriculture and Markets

The New York State Department of Agriculture and Markets has confirmed four cases of equine West Nile virus. A 1-year-old filly from Canajoharie, NY (Montgomery County) started exhibiting symptoms on September 23rd, 2018. She had been recently vaccinated but not for WNV. On September 29th, a 13-year-old mare from Newfield, NY (Tompkins County) started to exhibited neurological symptoms. She had no recent travel or vaccine history. A 9-year-old gelding from Afton, NY (Chenango County) became ill on September 30th. He had been vaccinated in Spring 2018 but not with a WNV vaccine. A 7-year-old stallion from Clymer, NY (Chautauqua County) became ataxic on September 28th. The stallion has no vaccine history and travels in the local area. All four horses are in various stages of recovery. In all 4 cases, blood samples confirmed active WNV infection.

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