Texas health officials have confirmed the state’s first human case of West Nile virus this year, diagnosing a Brazos County resident with West Nile fever on 24 June, the Department of State Health Services said Thursday. The announcement comes as mosquito surveillance across the country begins to detect the virus: Denver reported its first positive mosquito sample of the season this week. Officials warn that the combination of a wet spring and early summer has created favourable breeding conditions. While roughly four in five people infected with West Nile show no symptoms, about 20 % develop fever, and fewer than 1 % suffer potentially fatal neuroinvasive disease. Texas recorded 455 cases and 56 deaths in 2024, and mosquitoes in much of the state typically remain active into November and December. Public-health agencies are urging residents to wear long sleeves, use EPA-registered insect repellents containing DEET or similar ingredients, install window screens and remove standing water to curb mosquito populations.