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Disease Alerts

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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Arizona, United States
Alert ID: 853
March 04, 2018

Arizona State Veterinarian

On Friday March 2, 2018, the Arizona State Veterinarian received notification confirming the diagnosis of Equine Herpes Myeloencephalopathy (EHM) in a 9 year old QH gelding that had tested positive for EHV-1  wild type on nasal swab while under treatment at a referral hospital.  This horse had been at Southpoint Arena in Las Vegas earlier in the month for a Cutting Horse event and also attended the Arizona Cutting Horse Association show in Queen Creek the weekend prior to developing neurological signs. The training facility is under quarantine.  As a precaution, the State Veterinarian of Nevada is reaching out to 18 states that had participants at the event not including Nevada and Arizona. The Arizona Cutting Horse Association is also reaching out to all contestants to inform them that all horses that attended the events and horses in barns should be observed for signs of illness and contact their veterinarian for testing as they may have been exposed.  The event center at Queen Creek is in the process of doing a second disinfection of the facility.  The next cutting event scheduled for Paso Robles, California has been postponed as a precaution