Crow tests positive for West Nile virus in Contra Costa County

Crow tests positive for West Nile virus in Contra Costa County
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(KRON) -- A young American crow from El Cerrito is the first bird to test positive for West Nile virus (WNV) in Contra Costa County in 2026, according to the Contra Costa Mosquito and Vector Control District. No human cases have been reported. "So far this summer, one group of mosquitoes from Mar...