West Nile virus has been detected in mosquitoes in New York City, but no human cases have been reported in the city so far in 2025.

West Nile virus has been detected in mosquitoes across New York City, according to the city’s Department of Health and Mental Hygiene. No human cases of the illness have been reported, but it has been found in all boroughs except for Manhattan.

In the past two weeks, mosquitoes carrying West Nile virus were detected in nine of 12 Staten Island ZIP codes, according to recent trap data.