West Nile Virus is the most common mosquito-borne illness in the continental U.S., spreading from infected birds to humans through mosquito bites. While most infected people show no symptoms, about ...

Maryland health officials confirmed a human death from West Nile virus in Western Maryland in 2025. The virus is transmitted to humans by mosquitoes that have fed on infected birds. Most people ...

Favorable weather and temperatures, its mix of rural and urban areas and testing are likely among the factors that have Lancaster County leading the region in West Nile cases so far this year. Though ...