First positive West Nile virus cases detected in Westchester in New Rochelle and Mount Vernon

County Health Department reminds residents to remove standing water and use repellent

A New Rochelle and Mount Vernon resident have tested positive for West Nile virus, the first confirmed human cases in Westchester County this year.

Dr. Sherlita Amler, Westchester County Health Officer, said, “These early cases of West Nile virus are occurring earlier than usual and should serve as a reminder to all of us to remove all standing water around our homes after every rain. They are also a reminder to use mosquito repellent when we spend time outdoors, especially from dusk to dawn when mosquitoes are most active.”

West Nile virus most commonly causes mild or moderate flu-like illness, but can be more severe, especially in people 65 and older and those with underlying medical conditions. Residents who notice large areas of standing water on public property should report it to the county health department at (914) 813-5000.

Throughout the season, the county health department catches and tests mosquitoes to determine the presence of viruses they transmit. For more information, visit