Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.

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Equine Herpesvirus- Respiratory

San Diego County, CA

Alert ID: 463

February 14, 2017

A 10-year old Warmblood gelding in San Diego County displaying neurologic signs of urine dribbling and hind limb ataxia was diagnosed as Equine Herpesvirus Myeloencephalopathy (EHM) based on a positive test for Equine Herpesvirus -1 by the California Animal Health and Food Safety (CAHFS) Laboratory. The neurologic signs were first noted on Tuesday February 7th. The positive horse was stabled in tent 21 at the HITS Show in Thermal, CA from January 21, 2017 to February 5th. The EHM horse and one additional exposed horse have been quarantined at their home premises in San Diego County. CDFA has been in contact with HITS show management and veterinarians to ensure enhanced biosecurity measures are taken on the premises. CDFA recommends any exposed horses be observed for clinical signs and have temperatures taken twice daily. CDFA will continue to monitor the situation. Go to: https://www.cdfa.ca.gov/ahfss/animal_health/equine_herpes_virus.html

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