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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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Equine Herpesvirus- Respiratory
Los Angeles County, CA
Alert ID: 365
November 14, 2016
On November 13, 2016, one horse at the Los Angeles Equestrian Center (LAEC), displaying a fever was placed in isolation quarantine and samples were collected for testing at the California Animal Health and Food Safety Laboratory. Additionally, the two febrile horses which tested negative on November 10, 2016, were re-sampled to confirm negative status. To date, there have been six confirmed cases of Equine Herpesvirus-1 Myeloencephalopthy (EHM), and three febrile horses confirmed positive Equine Herpesvirus-1. One of the EHM cases was euthanized due to the severity of the disease. The remaining five neurologic cases are showing improvements and remain in isolation. Enhanced biosecurity measures are in place in all barns under quarantine and all horses’ temperatures are monitored twice daily. CDFA veterinarians, livestock inspectors and USDA animal health technicians continue to monitor the quarantine and incident situation on-site and will provide additional updates as they become available.
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