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

Grayson County, KY

Outbreak Identifier: 7077

Alert ID: 4597

September 18, 2025

Confirmed Case(s) - No Quarantine

Source: Kentucky Department of Agriculture

Number Confirmed: 1;
Number Exposed: Unknown;
Facility Type: Private Facility;

Horse 1:
Age: 10; Gender: Mare; Breed: Belgian; Onset of Clinical Signs: 9/13/2025; Clinical Signs: Owner noticed 'not right' on 9/13- Presented 9/15 Head Down, Lethargic, mild ataxia in front limbs- 9/18 described as improving; Confirmation Date: 9/18/2025; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Comments: This is the 2nd case confirmed in Grayson County and KY's 9th case y-t-d;

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