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

Orange County, CA

Alert ID: 897

April 30, 2018

Source: California Department of Food and Agriculture

On April 29, 2018 The California Department of Food and Agriculture confirmed a new case of Equine Herpesvirus Myeloencephalopathy (EHM). A 9 year old mare from the quarantined barn at the Orange County Facility, displaying neurological signs has tested positive for Equine Herpesvirus-1. Based on clinical signs and the detection of the EHV-1 virus, the horse has been classified as a case of Equine Herpesvirus Myeloencephalopathy. This mare has been placed in onsite isolation stabling. To date, there have been seven (7) confirmed febrile cases of EHV-1 and three confirmed cases of EHM. CDFA continues onsite monitoring of the situation.

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