News Releases for 2025
Another West Nile Virus-Infected Bird Has Been Found in Contra Costa County (8/15/25)
First West Nile Virus-Infected Mosquitoes of 2025 Found in Contra Costa County (7/31/25)
First West Nile Virus-Infected Bird of 2025 Found in Contra Costa County (7/21/25)
Invasive Mosquitoes Found Again in Contra Costa County (5/9/25)
Next Week is California Mosquito Awareness Week (4/9/25)