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- Neurologic

Orange, San Mateo, Riverside, Santa Clara & Sonoma, CA

Outbreak Identifier: 5143

Alert ID: 2511

March 24, 2022

Outbreak Update

Source: California Department of Food and Agriculture

Notes: Orange county #1 (original EDCC notification #2438): 23 confirmed (2 EHM, 21 fever)- no change

• Orange county #2 (not posted individually): 16 confirmed (2 EHM, 14 fever/mild signs)- no change

• Orange county #3 (original EDCC notification #2455): 26 confirmed (2 EHM, 24 fevers)- no change

• San Mateo county #1 (original EDCC notification #2405): 40 confirmed (4 EHM, 36 fevers)- no change

• San Mateo county #2 (original EDCC notification #2479): 3 confirmed (1 EHM, 2 fever)- no change

• Riverside county (original EDCC notification #2416): 35 confirmed (3 EHM, 32 fevers) – PREMISES RELEASED

• Santa Clara county (original EDCC notification #2482): 2 confirmed (2 EHM)- no change

• Sonoma County (new premises): 1 confirmed (1 EHM)- New Premises

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