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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Equine Infectious Anemia

Carter County, OK

Outbreak Identifier: 6792

Alert ID: 4288

April 01, 2025

Confirmed Case(s) - Official Quarantine

Source: State Veterinarian

Number Confirmed: 1;
Number Suspected: Unknown;
Number Exposed: 70;
Number Euthanized: 1;
Facility Type: Training Facility;

Horse 1:
Age: 5; Gender: Mare; Breed: Quarter Horse (QH); Usage: Barrel Racing; Clinical Signs: Routine testing was performed on 2/21/2025 before transporting to a training facility. Initial results were returned as positive, and subsequent testing confirmed the diagnosis of EIA on 3/6/2025.; Confirmation Date: 3/6/2025; Horse Status: Euthanized;

Comments: Trace back has been initiated. 30 of the 70 exposed horses have tested negative. 40 of the horses have tested negative on their first test. Final test will be performed on or about 5/10/2025.;

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