There are two confirmed human cases of West Nile virus in the Houston area — one positive case in Harris County and one in Montgomery County.

A mosquito sample recently taken in Houston tested positive for the West Nile virus, according to Harris County Public Health. The sample was conducted by Harris County Public Health’s Mosquito and Vector Control Division and collected inside the inner ...

As temperatures climb ahead of summer, Houston residents face increased risks from mosquito-borne diseases, with environmental shifts potentially amplifying these threats, health experts warn. Recent environmental shifts are creating more favorable ...

Mosquitoes, the tiny pests that Houston residents are more than accustomed to buzzing around and being micro-sized nuisances, are packing a heavier punch this summer season. According to Harris County Public Health, West Nile — a virus transmitted by ...

Harris County has received reports of five West Nile virus cases in residents in the aftermath of Hurricane Beryl, which caused widespread wind-related damage and flooding as well as an explosion in the Houston-area mosquito population. The county has seen ...

Two University of Wisconsin-Madison students traveled to Houston after Hurricane Harvey to aid in mosquito control and study mosquito-borne diseases. Veterinary medicine student Melissa Farquhar and medical and public health student Erin McGlynn are ...

Harris County Public Health and the Houston Health Department have confirmed cases of West Nile Virus in humans for 2026, according to a release.