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

Tulare County, CA

Outbreak Identifier: 5341

Alert ID: 2722

September 12, 2022

Confirmed Case(s) - No Quarantine

Source: California Department of Food and Agriculture

Number Confirmed: 1;
Age: 1; Gender: Filly; Breed: Quarter Horse (QH); Onset of Clinical Signs: 9/5/2022;
Clinical Signs: ataxia (all 4), falling down, proprioceptive deficits; Confirmation Date: 9/12/2022; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;
Comments: For 2022, a total of seven (7) horses have been confirmed positive for WNV in California. The positive horses were located in Kern County (3), Sacramento County (1), Tehama County (1), and Tulare County (2). For more information about West Nile Virus go to: WNV factsheet.

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