As of May 2024, Dallas County Health Services has reported that 90 mosquito samples have tested positive for West Nile Virus. Controlling the mosquito population is crucial to limiting the spread of this disease, but recent weather has complicated efforts.
Dr. Philip Huang, director of Dallas County Health and Human Services, noted that recent rains have caused a spike in mosquito numbers. Warm temperatures and plentiful water provide ideal conditions for mosquitoes, increasing the risk of West Nile Virus as they can spread the virus from infected birds to humans.
To tackle this, Dallas County uses mosquito traps to monitor populations. When mosquitoes in an area test positive for the virus, targeted ground spraying is done within about a mile of the trap. This focused approach is more efficient than blanket spraying, which would be less effective.
In addition to spraying, the county’s teams identify other high-risk areas and apply treatments to prevent mosquito breeding. They also promote measures for residents to reduce mosquito exposure.
To protect yourself from mosquito bites, follow these “Four Ds”:
1. **Deet**: Apply EPA-approved mosquito repellent.
2. **Dress**: Wear long sleeves, long pants, and light-colored clothing.
3. **Drain**: Remove any standing water where mosquitoes might breed.
4. **Dawn and Dusk**: Be extra cautious during these times when mosquitoes are most active.
Mosquitoes can also carry other diseases like Zika virus, dengue fever, and chikungunya. While many mosquito bites cause only mild symptoms, some can lead to severe illness.
About 20% of people with West Nile Virus develop symptoms like fever, and less than 1% may suffer from severe neuro-invasive disease, which can be serious or even fatal.
Dallas County’s efforts to monitor and control mosquitoes play a crucial role in reducing the risk of these dangerous diseases.