The California Department of Food and Agriculture reported a confirmed case of equine neurologic herpesvirus (also known as equine herpesvirus myeloencephalopathy or EHM) in Alameda County. The 14-year-old pony mare had onset of clinical signs on March 12 that included cranial nerve deficit, decreased tail and tongue tone, hypermetria and acute blindness. She cas confirmed positive on March 14.
The vaccinated mare was alive at the time of this report.
A total of 44 other equids were reported to have been exposed to this mare. There is an official quarantine in place.
Information for this report was provided by the Equine Disease Communication Center.