Overview
- The Maryland Department of Agriculture confirmed West Nile virus in mosquito samples from Anne Arundel and Prince George’s counties and said no human infections have been detected.
- The first positive sample in Anne Arundel was identified through routine trapping and laboratory testing and MDA reported a second positive result after notifying state officials.
- MDA’s Mosquito Control Program, which treats roughly 2,100 communities across 16 counties each year, is maintaining routine control and will target treatments where surveillance finds infected mosquito pools.
- Federal guidance remains the public health backbone because there is no human vaccine; CDC advice includes using EPA‑registered repellents, wearing long loose clothing at dawn and dusk, removing standing water, and seeking care for severe symptoms.
- Officials say regional weather patterns help explain timing and intensity of mosquito activity and they will continue trapping, testing and public updates to watch for additional mosquito or human cases.