The California Department of Food and Agriculture (CDFA) has confirmed a case of neurologic equine herpesvirus in Los Angeles County. There is an official quarantine at the boarding facility where the case was confirmed.
An 11-year-old Tennessee Walking Horse gelding at a boarding facility in Los Angeles County had onset of clinical signs on February 7 that included acute severe hind limb ataxia and becoming recumbent. The horse was confirmed with neurologic herpesvirus (equine herpesvirus myeloencephalopathy or EHM) on February 11 and was euthanized.
No horses on the premises had recent show or travel history, and all owners of 72 exposed horses have been notified. No additional cases have been identified at this time, and CDFA will continue to actively monitor the situation.