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

Kern County, CA

Outbreak Identifier: 5764

Alert ID: 3199

August 21, 2023

Confirmed Case(s) - No Quarantine

Source: California Department of Food and Agriculture

Number Confirmed: 1;
Number Exposed: Unknown;
Age: 3; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 8/7/2023;
Clinical Signs: Acute onset of neurological behavior, pelvic limb weakness, falling when backed, neurologic on tail pull; Confirmation Date: 8/15/2023; Horse Status: Euthanized; Vaccination Status: Undervaccinated;
Comments: This is the 5th case of equine WNV confirmed in California in 2023.

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

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