A mosquito in Lewisville has tested positive for West Nile Virus, prompting the city to spray for mosquitoes. Additionally, other areas in Denton County, including Flower Mound, Argyle, and Harvest, have also had mosquito traps test positive for the virus, with fogging scheduled in some of these locations. The total number of affected areas and traps is unclear, but multiple locations in Denton County have reported positive tests.