EHV-1
In many horses, the only sign of EHV-1 infection is fever, which can go undetected. | Photo: Stephanie L. Church/The Horse

The California Department of Food and Agriculture (CDFA) has announced additional confirmed cases of equine herpesvirus-1 (EHV-1) in horses residing an already quarantined facility in Orange County.

On April 24 the CDFA reported that a febrile horse which initially tested negative was resampled and confirmed positive for EHV-1.

“This horse has been placed in isolation on the premises,” the agency said

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