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

Inyo County, CA

Alert ID: 386

December 07, 2016

EHM has been confirmed in one horse with mild neurologic symptoms in Inyo County, CA. Additionally, two (2) febrile horses on the same ranch have been confirmed positive for the neurotrophic EHV-1 strain and neither horse is exhibiting any neurologic symptoms at this time. This is the neurologic strain, which is biologically distinct from the non-neurologic strain identified in all the Los Angeles county confirmed cases. The affected horses are part of a wintering pack string of horses and mules on an isolated, high desert ranch. These horses/mules have been placed under quarantine with no movement allowed in order to limit disease transmission. The investigation of this disease outbreak is continuing by CDFA staff. Updates will continue on a 48 hour basis.

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