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

Bryan, Garvin, Payne, Osage, Grady Counties, OK

Alert ID: 1109

October 31, 2018

Source: Oklahoma Department of Agriculture, Food, and Forestry

The Oklahoma Department of Agriculture, Food, and Forestry has reported five confirmed cases of equine West Nile virus. A three-year-old quarter horse filly located in Bryan County was showing severe neurologic signs and was euthanized. The vaccination history is unknown. A yearling Quarter Horse stallion located in Garvin County was showing moderate neurologic signs and was unvaccinated. A 12-year-old Warmblood gelding located in Payne County was showing severe neurologic signs and was euthanized. The horse was current on vaccinations. A 2-year-old Quarter Horse gelding located in Osage County was showing severe neurologic signs and died within 24 hours. The vaccination history is unknown. A 3-year-old Clydesdale/Hackney female located in Grady County was showing mild neurologic signs. The horse was currently vaccinated for WNV. No quarantines were issued. This brings the number of confirmed cases of equine West Nile virus in OK in 2018 to 10.

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