The patient, a male resident of Dallas, was diagnosed with West Nile neuroinvasive disease, a severe case of the virus, according to a news release from the agency. The case was reported in the ZIP code 75212, which includes west Dallas.
What you need to know
West Nile virus is most commonly spread to humans through the bite of infected mosquitoes, which get the virus by feeding on infected birds. In few cases, the virus can spread through exposure in a laboratory setting, blood transfusion or organ transplant, or from mother to infant during pregnancy, birth or breast feeding, according to the Centers for Disease Control and Prevention.
Only about 1 in 5 people infected with the virus develop symptoms, which can include a fever, headache, body aches, joint pains, vomiting, diarrhea or rash. Most patients recover completely but can experience fatigue and weakness for up to months, according to the CDC.
Cases of West Nile virus occur during summer and fall, when mosquitoes are most prevalent, according to the CDC. No preventative vaccine or medication treatment are available for West Nile virus. However, rest, fluids and over-the-counter pain medicines can relieve some symptoms. People who think they may have the virus should consult a health provider.
In 2022, Dallas County Health and Human Services reported three human cases of West Nile Virus and one death, according to the agency’s website. This year in Dallas County, mosquitos have tested positive for West Nile virus in the ZIP codes 75019 in Coppell; 75081 and 75082 in Richardson; and now 75212 in Dallas.
What the experts say
Philip Huang, Dallas County Health and Human Services director, said in the news release that residents should follow “the four D’s” to avoid contracting the virus:
- DEET: When outside, use insect repellents that contain the chemical DEET or other Environmental Protection Agency-approved repellents.
- Dress: Wear long, loose and light-colored clothing when outdoors.
- Drain: Drain or treat all standing water in and around your home or workplace where mosquitoes could lay eggs.
- Dawn to dusk: Limit outdoor time during these times when mosquitoes are most active.
