The City of San Antonio Metropolitan Health District (Metro Health) has reported the first positive test for West Nile Virus (WNV) in a mosquito pool for the year. The infected mosquito pool was found in the southwest area of San Antonio near the intersection of Ray Ellison Blvd and Loop 410. This confirmation was made through lab results on May 15, 2024.
In response, Metro Health’s Vector Control program will conduct pest control treatment and fogging services in the surrounding areas next week to mitigate the spread of WNV. Metro Health will continue to update information on future positive WNV mosquito pools on its website.
Given the increased rainfall, which can lead to more mosquito breeding, Metro Health advises the community to take preventive measures:
Remove standing water by emptying, scrubbing, and overturning containers that hold water, such as vases, pet water bowls, and discarded tires.
Improve sanitation to reduce mosquito larvae survival by minimizing organic matter in water sources.
Protect yourself by using insect repellent containing DEET or Picaridin on exposed skin, wearing long-sleeved clothing, using air conditioning, and installing screens on doors and windows.
WNV is primarily transmitted to humans through mosquito bites, with mosquitoes becoming infected by feeding on infected birds. While most people infected with WNV do not feel sick, some may experience fever, headaches, body aches, vomiting, or rashes. Severe illness, such as encephalitis or meningitis, can occur, particularly in individuals over 60 years old or those with certain medical conditions.
Since there are no vaccines or specific treatments for WNV, prevention through mosquito control and personal protective measures is essential during mosquito season, which typically lasts from summer to fall.
