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

Nowata County, OK

Outbreak Identifier: 7181

Alert ID: 4705

November 06, 2025

Confirmed Case(s) - No Quarantine

Source: State Veterinarian

Number Confirmed: 1;
Number Suspected: Unknown;
Number Exposed: Unknown;

Horse 1:
Age: 17; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 10/21/2025; Clinical Signs: Hypermetric on front, painful neck, muscle fasciculations, painful withers; Confirmation Date: 10/28/2025; Horse Status: Recovered; Vaccination Status: Unvaccinated;

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