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

Henry County, IN

Outbreak Identifier: 7098

Alert ID: 4617

September 25, 2025

Confirmed Case(s) - No Quarantine

Source: Indiana State Board of Animal Health

Number Confirmed: 1;
Number Exposed: Unknown;

Horse 1:
Age: 6; Gender: Gelding; Breed: Tennessee Walking Horses; Onset of Clinical Signs: 9/14/2025; Clinical Signs: Minor ataxia in front limbs, moderate ataxia in the hind limbs, inappetence, and laying down more than normal.; Confirmation Date: 9/25/2025; Horse Status: Affected And Alive; Vaccination Status: Vaccinated;

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