New York City confirms its initial West Nile virus cases for 2025. Two Queens residents are affected. One has West Nile fever and is now recovered. Another is hospitalized with a brain infection. The virus is present in mosquitoes across all five boroughs since July.

The Maryland Department of Health has confirmed the first human case of West Nile virus in 2025.On Saturday, an alert was issued by the agency advising that an adult living in Central Maryland has tested positive for the virus and is recovering from the infection.

The Maryland Department of Health has confirmed the state's first human case of West Nile virus for 2025 after a Central Maryland resident tested positive.