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Disease Alerts

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.


Equine Herpesvirus- Neurologic
Los Angeles County, CA
Outbreak Identifier: 5244
Alert ID: 2620
June 16, 2022
Confirmed Case(s) - Official Quarantine


Number Confirmed: 1;
Number Exposed: 9;
Facility Type: Private Facility;
Age: 20; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 6/9/2022;
Clinical Signs: Colic, urine dribbling, bladder hemorrhage.; Confirmation Date: 6/14/2022; Horse Status: Euthanized; Vaccination Status: Vaccinated;
Notes: Additional information can be found at; For more information go to EHM factsheet.