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

California, United States

Alert ID: 522

April 28, 2017

Source: California Department of Food and Agriculture

April 28, 2017: A 15 year old Warmblood mare in Sacramento County displaying severe neurologic signs was confirmed positive for Equine Herpesvirus-1 (EHV-1). The mare initially showed signs of colic on Friday April 21^st and was transported to a veterinary clinic for veterinary care. While in isolation at the veterinary clinic, the mare started displaying neurologic signs, became recumbent and was subsequently euthanized. Quarantine was immediately implemented at the home premises. Because this horse meets the case definition for an Equine Herpesvirus Myeloencephalopathy (EHM) CDFA issued a quarantine for 31 exposed horses which requires implementation of biosecurity measures including twice daily temperature taking and clinical observation of the horses. No exposed horses have displayed signs of disease. CDFA continues to monitor the situation onsite. Go to https://www.cdfa.ca.gov/ahfss/animal_health/equine_herpes_virus.html

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