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

Los Angeles County, CA

Outbreak Identifier: 5662

Alert ID: 3083

June 29, 2023

Confirmed Case(s) - Official Quarantine

Source: California Department of Food and Agriculture

Number Confirmed: 1;
Number Suspected: Unknown;
Number Exposed: 8;
Facility Type: Private Facility;
Age: 5; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Racing;
Clinical Signs: None, tested prior to return to racetrack.; Confirmation Date: 6/22/2023; Horse Status: Affected And Alive;
Comments: A 5–year–old Quarter Horse gelding residing in Los Angeles County was confirmed positive for Equine Infectious Anemia (EIA). The gelding has been quarantined at its home private premises along with eight (8) additional potentially exposed horses that have also been tested for EIA with results currently pending. Epidemiological tracing is ongoing, but transmission is suspected to be iatrogenic and exposure primarily limited to a subset of an unsanctioned racing population.

For more information and updates, go to: https://www.cdfa.ca.gov/ahfss/Animal_Health/EquineInfectiousAnemia.html;

Also see, https://www.equinediseasecc.org/equine-infectious-anemia

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