EHV-1 Reported in Two California Counties

Equids residing in Riverside and San Joaquin counties have tested positive for equine herpesvirus-1 (EHV-1).

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The California Department of Food and Agriculture (CDFA) has reported that equids in Riverside and San Joaquin counties have tested positive for equine herpesvirus-1 (EHV-1).

In a statement on its website, the department reported June 16 that a 12-year-old Quarter Horse gelding and a 12-year-old mule, both from Riverside County, attended Mule Days in Bishop, California, which took place May 17-26.

“After returning home, the Quarter Horse gelding spiked a fever of 106$deg;F on May 30 and exhibited neurologic signs on June 4 and confirmed positive for the non-neuropathogenic strain of EHV-1,” the statement said. “The 12-year-old mule never spiked a fever and began coughing on June 2 but showed no other clinical signs.” is home to thousands of free articles about horse health care. In order to access some of our exclusive free content, you must be signed into

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The Horse: Your Guide To Equine Health Care is an equine publication providing the latest news and information on the health, care, welfare, and management of all equids.

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