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

Riverside County, CA

Alert ID: 150

February 09, 2016

February 9, 2016: A fourteen (14) year-old polo mare, in Riverside County, displaying acute onset neurologic signs was euthanized on Sunday, February 7, 2016. The necropsy results from the California Animal Health and Food Safety Laboratory on February 9th, confirmed the non-neuropathogenic strain of EHV-1. All seventy (70) exposed horses in the stabling area have been placed under quarantine with required twice daily temperature monitoring. At this time, no additional horses are displaying clinical signs. All exposed horses will be monitored for clinical signs and fever for 14 days post-exposure. Enhanced biosecurity measures have been implemented and immediate isolation protocols for any horse with a temperature over 102F, or compatible clinical signs, are in place. CDFA has conducted an initial epidemiologic investigation to identify potentially exposed horses. There is no known link to the current EHV-1 outbreaks in other states. CDFA will continue to monitor the situation.

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