Outbreak Alerts: September 30, 2025 West Nile Virus in Sacramento County, CA
Confirmed Case(s) – No Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1; Horse 1: Age: 1; Gender: Colt; Breed: Friesian; Onset of Clinical Signs: 9/22/2025; Clinical Signs: ataxia (worse in hind end), hyperreactive, muscle fasciculations, hypermetric front end; Confirmation Date: 9/29/2025; Vaccination Status: Unvaccinated; Comments: The fifth (5th) case of West Nile Virus in California in 2025 was confirmed in Sacramento County. On … Read More




