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

Riverside County, CA

Outbreak Identifier: 4593

Alert ID: 1964

February 18, 2021

Confirmed Case(s) - Official Quarantine

Source: California Department of Food and Agriculture

Number Confirmed: 1;
Number Exposed: 62;
Facility Type: Training Facility;
Age: 5; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: Not Reported;
Notes: On February 17, 2021, a 5-year-old Quarter Horse mare was confirmed positive for Equine Infectious Anemia (EIA). The mare had a previous racing history and was detected during routine testing for returning to the track. Sixty-two (62) exposed horses on the home premises have been quarantined and are awaiting test results. CDFA will continue to conduct epidemiological tracing to determine if any additional horses were exposed. For more information on EIA, please see the CDFA website at https://www.cdfa.ca.gov/ahfss/Animal_Health/EquineInfectiousAnemia.html

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