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 Mateo County, CA

Alert ID: 931

June 29, 2018

Source: California Department of Food and Agriculture

The California Department of Food and Agriculture has reported a 15 year old Pony mare, originating from a San Mateo County facility, displaying neurologic signs has been confirmed positive for Equine Herpesvirus Myeloencephalopathy. An additional horse originating from the same property, a 24 year old Tennessee Walking Horse mare, displayed a fever and tested positive for Equine Herpes Virus-1. Both mares have been isolated, placed under quarantine and enhanced biosecurity is in effect. Exposed horses will be monitored for clinical signs and temperatures will be taken twice daily. Any horse displaying a fever or compatible clinical signs will be tested. CDFA will continue to monitor the situation and post new information as it becomes available.

https://www.cdfa.ca.gov/ahfss/animal_health/equine_herpes_virus.html

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