The California Department of Food and Agriculture (CDFA) has released the quarantine put in place after one horse tested positive for equine herpesvirus-1 (EHV-1) earlier this month.

The quarantine was released on Jan. 25. No additional cases have been confirmed and the incident has been closed, the CDFA said in a statement.

The draft-cross gelding displayed neurologic signs and was confirmed positive for the non-neuropathogenic strain of EHV-1 in early January.

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 myeloencephalopathy. In many horses, fever is the only sign of EHV-1 infection, which can go undetected

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