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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.



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San Diego County, CA
Alert ID: 243
July 06, 2016
The first case of equine WNV has been confirmed for 2016 in California. A thoroughbred mare met case definition with neurologic signs and a positive IgM Capture ELISA test for West Nile Virus. The positive horse is located in San Diego County. The unvaccinated five (5) year-old mare is alive and recovering slowly. CDFA continually monitors and investigates equine neurologic cases for the presence of WNV in California. For more information go to https://www.cdfa.ca.gov/ahfss/animal_health/WNV_Info.html