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

Fayette County, KY

Outbreak Identifier: 7078

Alert ID: 4598

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: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 9/15/2025; Clinical Signs: 9/16 presented Lethargic with mild muscle fasciculation // 9/18 described as recovered; Confirmation Date: 9/18/2025; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;

Comments: Vaccination status is unknown but not probable. Owner advised she self-vaccinated and 'thinks' the vaccine she used included West Nile;

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