First Dead Bird from San Pablo and More Mosquitoes Test Positive for West Nile Virus in Contra Costa County (9/24/21)
More Mosquitoes Test Positive for West Nile Virus in Contra Costa County (9/10/21)
First Dead Bird of 2021 Tests Positive for West Nile Virus in Contra Costa County (9/3/21)
More Mosquitoes Test Positive for West Nile Virus in Discovery Bay(8/13/21)
More Mosquitoes Test Positive for West Nile Virus in Contra Costa County (7/16/21)
First Sign of West Nile Virus of 2021 - Contra Costa County Mosquitoes Test Positive (7/2/21)