March 16, 2020: A 14-year-old Pony mare in Alameda County displaying neurologic signs has been confirmed positive for Equine Herpesvirus-1. The mare has been isolated and quarantined at a veterinary hospital.  Forty-four (44) exposed horses on the home premise have been quarantined with enhanced biosecurity measures including twice daily temperature monitoring. CDFA was onsite March 14 to evaluate the situation. All potentially exposed horses have been traced and contacted. Any horse displaying clinical signs or a temperature over 101.5F shall be reported to the veterinarian for evaluation and potential nasal swab and blood sampling. CDFA will continue to monitor the situation.