West Nile virus activity is on the rise in some northern California counties, according to the Sacramento-Yolo Mosquito and ...

A crow from Walnut Creek has tested positive for West Nile virus (WNV) in Contra Costa County, confirmed the Contra Costa ...

Local health officials say Chicago has reached a “high risk” level of the West Nile virus because mosquitoes are testing ...

The Allegheny County Health Department detected West Nile Virus in more samples this week and will now treat several ...

The Iowa Department of Health and Human Services (HHS) confirmed the first case of West Nile Virus in the state in 2025. On ...

Johnson County Public Health confirmed the presence of West Nile virus in mosquitoes on Thursday. There have been no reported ...

Most people with West Nile will experience no symptoms at all. But for some, symptoms can be severe and take weeks or months ...

West Nile virus can cause fever-related illness or brain and spinal cord infections, including meningitis or encephalitis.

Mosquito samples in several Louisiana parishes tested positive for West Nile Virus, prompting increased abatement efforts.

Northern California’s first human West Nile virus case of the year has been confirmed in Butte County, according to local ...

Idaho’s first reported death caused by West Nile virus this year was identified in a Twin Falls County resident over the age ...