WNV in Oklahoma Horses: Six New Cases Confirmed

Animal health officials confirmed WNV cases in horses from Bryan, Garvin, Grady, Logan, Osage, and Payne counties.
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wnv in oklahoma horses
West Nile virus is transmitted to horses via bites from infected mosquitoes. | Photo: iStock

The Equine Disease Communication Center (EDCC) announced Oct. 31 that the Oklahoma Department of Agriculture, Food, and Forestry (ODAFF) has reported six confirmed cases of equine West Nile virus (WNV). This brings the total to 11 confirmed cases of WNV in Oklahoma horses so far this year.

The EDCC and ODAFF said:

  • A 3-year-old Quarter Horse filly from in Bryan County was showing severe neurologic signs and was euthanized. Her vaccination history is unknown;
  • An unvaccinated yearling Quarter Horse colt located in Garvin County was showing moderate neurologic signs;
  • A 12-year-old Warmblood gelding in Payne County was showing severe neurologic signs and was euthanized. The horse was current on vaccinations;
  • A 2-year-old Quarter Horse gelding from in Osage County was showing severe neurologic signs and died within 24 hours. The vaccination history is unknown;

wnv in oklahoma horses
Bryan County, Oklahoma
wnv in oklahoma horses
Garvin County, Oklahoma
wnv in oklahoma horses
Grady County, Oklahoma
wnv in oklahoma horses
Logan County, Oklahoma
wnv in oklahoma horses
Osage County, Oklahoma
wnv in oklahoma horses
Payne County, Oklahoma
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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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