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

Utah County, UT

Outbreak Identifier: 7658

Alert ID: 5233

September 14, 2026

Confirmed Case(s) - No Quarantine

Source: Utah Department of Agriculture and Food

Number Confirmed: 1;
Number Exposed: 5;
Facility Type: Private Facility;

Horse 1:
Age: 3; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 9/4/2026; Clinical Signs: Ataxia and colic signs manifesting as tripping initially. Recovering after 5 days at the veterinary hospital.; Confirmation Date: 9/10/2026; Horse Status: Recovering; Vaccination Status: Unvaccinated;

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