The California Department of Food and Agriculture (CDFA) has reported that a polo pony euthanized after developing neurologic signs tested positive for equine herpesvirus-1 (EHV-1).

“A 14-year-old polo mare, in Riverside County, displaying acute onset neurologic signs was euthanized on Sunday, Feb. 7,” the CDFA said in a Feb. 9 statement. “The necropsy results from the California Animal Health and Food Safety Laboratory on Feb. 9 confirmed the non-neuropathogenic strain of EHV-1.”

The CDFA noted that 70 exposed horses have been placed under quarantine with required twice daily temperature monitoring.

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