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Zika Virus: Williamson County Response
Mosquito by coniferconiferSome of the following Information was prepared by John Teel, Executive Director WCCHD

What is the Zika Virus?

  • Zika is a virus transmitted primarily by the Aedes mosquito, which also transmits dengue and chikungunya. 
  • Onset in 2-7 days after the mosquito bite.
  • 1 in 4 people with Zika infection develop symptoms.
  • A very small number of people can develop complications after becoming ill with the virus.

Symptoms include:
  • Mild Fever
  • Conjunctivitis
  • Headache and joint pain
  • Skin Rash

Who is at Risk?

Pregnant Women:
  • Can be passed from mother to child.
  • Data suggest up to 1 in 20 infected mothers will experience significant birth defects or death of the fetus.
  • Can be spread sexually.

Young children:
  • Deafness, blindness.
  • Developmental delays.
  • Other yet to be documented problems.

  • Guillain-Barre Syndrome (paralysis).
  • Other yet to be documented problems.

Potential for local transmission
Williamson County has both mosquito species capable of transmitting Zika virus locally, resulting in sustained transmission and establishment as an endemic disease. Any transmission of Zika here would be a public health emergency.

Zika in Texas

Zika has been found in Texas. Most cases in Texas are travel-associated, meaning the persons got infected outside the United States; however, there is currently one case of local transmission via sexual contact in Texas.

Zika Vaccines
There is no vaccine to prevent Zika.

Zika Treatment
While there is no medicine to specifically treat Zika, your physician can help manage symptoms.

To keep the mosquitoes off your body, use the Four D's:
  • Wear DEET,
  • Dress appropriately with long sleeves and pants,
  • Drain stagnant areas of water and,
  • Stay indoors during dawn and dusk hours.

Williamson County Integrated Mosquito Management

  1. Surveillance and Testing
    • Trap and test mosquitoes for diseases.
  2. Education/Prevention
    • "Fight The Bite" campaign
    • Community outreach.
    • Nuisance investigations.
  3. Planning and Coordination
    • Mosquito Control Task Force established with community partners in 2012.
    • Working side by side with cities for control decisions.
    • Guidance in emergency situations.
    • Maintenance of a retainer spray contract with vendor (VOCI).
    • Creation of best management practices.