Another California Horse Tests Positive for EHV-1
On Nov. 27, California Department of Food and Agriculture (CDFA) officials confirmed that another exposed horse on the San Bernardino County index premises first identified on Nov. 6, a 12-year-old Quarter Horse mare, became febrile (displayed an elevated fever) and subsequently tested positive for equine herpesvirus-1 (EHV-1).
The outbreak on the index premises now involves four horses that have developed neurologic signs. Three of these were euthanized due to the severity of their signs. Six horses have become febrile and confirmed positive for EHV-1, and an additional 10 horses remain in exposed status following quarantine and implementation of enhanced biosecurity measures, including twice-daily temperature monitoring.
EHV 101
Herpesvirus is highly contagious among horses and can cause a variety of ailments in equids, including rhinopneumonitis (a respiratory disease usually found in young horses), abortion in broodmares, and equine herpesvirus myeloencephalopathy (EHM, the neurologic form)
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