West Nile virus has been detected in various mosquito populations across multiple counties, including Oakland, Hamilton, Bexar, Atlantic, and Denton. Health officials in these areas are urging residents to take precautions such as using EPA-registered insect repellents, wearing protective clothing, and eliminating standing water where mosquitoes breed. While most people infected with West Nile virus show no symptoms, the virus can cause severe neurological illness in a small percentage of cases. Denton County reported its first fatality of the season due to the virus. In response, local authorities are increasing mosquito control measures, including spraying affected areas. Residents are advised to stay indoors during spraying times and follow preventive measures to reduce the risk of infection.