Harris County Confirms First Human West Nile Virus Case of 2025
Harris County Public Health (HCPH) has reported the first human case of West Nile virus (WNV) in 2025, prompting renewed warnings for residents to take preventative action as mosquito season intensifies across the region.
The case, confirmed in an adult male from eastern unincorporated Harris County, marks the beginning of what health officials expect to be another active summer for mosquito-borne illnesses. Fortunately, the patient has made a full recovery.
“The confirmation of the first human case of West Nile virus in our community serves as an important reminder that mosquito-borne diseases are a serious threat in our area. We must take them seriously and protect ourselves and our loved ones,” said Dr. Ericka Brown, HCPH’s Local Health Authority and Director of the Community Health and Wellness Division.
West Nile virus is primarily spread to people through the bite of an infected mosquito. According to the Centers for Disease Control and Prevention (CDC), most people infected with WNV do not experience symptoms. However, about 1 in 5 people develop symptoms such as fever, headache, body aches, joint pain, vomiting, diarrhea, or rash. A small number—less than 1%—can develop serious neurological illness, including encephalitis or meningitis, which can lead to seizures, coma, or death.
Mobile Sidebar Ad
In 2024, unincorporated Harris County saw 57 human cases of West Nile virus, and three WNV-related deaths were reported countywide, underscoring the threat that looms each summer.
“The surveillance program conducted by the Mosquito and Vector Control Division [MVCD] is essential for detecting the presence of West Nile virus in our community and helps guide efforts to protect our community members,” explained Dr. Courtney Standlee, HCPH Interim Director of MVCD.
There is no specific antiviral treatment for WNV, but over-the-counter pain relievers and supportive care can alleviate milder symptoms. Individuals with severe illness may require hospitalization. Early detection remains key, and anyone experiencing symptoms is urged to contact their healthcare provider promptly.
Protect Yourself: Follow the “3 Ts” of Mosquito Prevention
As temperatures rise and mosquito populations increase, HCPH recommends residents follow the “3 Ts” to reduce the risk of West Nile virus in their homes and neighborhoods:
-
Tip – Drain standing water from containers like flowerpots, birdbaths, toys, and tires. Mosquitoes breed in still water.
-
Toss – Dispose of items that collect water and are no longer needed.
-
Take Action – Use EPA-approved insect repellent, wear long sleeves and pants when outside, and repair window and door screens to keep mosquitoes out.
Mobile Sidebar Ad
“Everyone can make a difference by tipping and tossing out standing water and taking action to avoid mosquito bites,” said Dr. Brown. “It’s a shared responsibility to reduce the risk.”
For updated information, West Nile virus symptoms, and mosquito control tips, residents are encouraged to visit the Harris County Public Health Mosquito Control Division website at hcphtx.org/MC.
As always, stay tuned to My Neighborhood News for community health updates and summer safety tips across Greater Houston.
Tiffany Krenek has been on the My Neighborhood News team since August 2021. She is passionate about curating and sharing content that enriches the lives of our readers in a personal, meaningful way. A loving mother and wife, Tiffany and her family live in the West Houston/Cypress region.
