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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West Nile Virus

Sacramento County, CA

Alert ID: 1119

November 07, 2018

Source: The California Department of Food and Agriculture

On November 2, 2018, the California Department of Food and Agriculture confirmed its 11^th equine West Nile Virus case for 2018. The case was a 1 year old Grade mare in Sacramento county with unknown vaccination history, displaying neurologic signs. The mare was euthanized due to severity of clinical signs. For 2018, a total of eleven (11) horses have been confirmed positive for West Nile Virus. The positive horses were located in Amador, Kern, Merced (2), Placer, Sacramento (3), San Joaquin, Shasta and Stanislaus counties. Five (5) horses were unvaccinated, three (3) horses had an unknown vaccine history, and three (3) horses were vaccinated. Six (6) horses died or were euthanized and five (5) horses are alive. For more information on California equine WNV cases for 2018 visit https://www.cdfa.ca.gov/ahfss/Animal_Health/WNV_Info.html

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