Denton County Public Health has confirmed the first human case of West Nile virus in North Texas this year, involving a local resident diagnosed with the non-neuroinvasive form of the disease.
Health officials announced the case on Friday, July 10, 2026. The individual, who resides in Denton, is the first reported human infection in the county for the 2026 season. Officials did not release additional personal details to protect privacy.
West Nile virus is primarily transmitted through the bite of infected mosquitoes, which acquire the virus from infected birds. Most people infected with WNV show no symptoms, while others may experience mild flu-like illness. In rare cases, it can cause serious neurological complications.
Denton County Public Health and the City of Denton are urging residents Denton County Public Health and the City of Denton are urging residents to take preventive measures as mosquito activity increases with warmer weather. Recommendations include using insect repellent with DEET, wearing long sleeves and pants outdoors, eliminating standing water around homes where mosquitoes breed, and ensuring window screens are intact.
This case comes amid ongoing regional surveillance. In 2025, Texas reported hundreds of West Nile cases statewide, highlighting the importance of vigilance each mosquito season.
No additional human cases have been reported in Denton County or surrounding North Texas areas so far this year. Health officials continue monitoring mosquito populations and testing samples for the virus.
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