West Nile virus has been identified in a mosquito pool in Ottawa for the first time in 2025. There is one confirmed human ...

An American crow from Walnut Creek is the second bird to test positive for West Nile virus, the Contra Costa Mosquito and Vector Control District said Friday.

Human cases of West Nile virus continue to rise and there has been an increase in mosquitoes becoming infected in the tri-state area. Scientists confirmed the infected insects are rampant, as they ...