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    First West Nile Positive Mosquito Sample Confirmed This Season


    Magaly Ayala
    Sr. Public Information Officer
    Tarrant County Public Health

    Tarrant County Public Health logo

    Tarrant County Public Health Confirms First West Nile Positive Mosquito 

    May 11, 2022 - (Tarrant County) - Tarrant County Public Health (TCPH) has confirmed a West Nile Virus (WNV) positive mosquito sample, the first of the 2022 season. The positive sample was collected in Bedford. West Nile Virus season typically runs from April through mid-November. Local cities and Tarrant County for unincorporated areas may perform mosquito treatment as needed.

    So far, 696 mosquito samples have been tested at TCPH’s North Texas Regional Laboratory.

    Last year, TCPH reported its first WNV positive mosquito sample on April 21.

    TCPH reminds residents to take measures to safeguard against the WNV. Residents should dump standing water on their property, use repellent, and whenever possible, dress in long pants and long sleeves.


    • Mosquitoes need water to breed. They don’t lay their eggs in the air or on the ground, so dump ALL standing water.
    • Infected mosquitoes transmit WNV to people after feeding on infected birds.
    • Birds don’t transmit WNV to people. Mosquitos do.
    • Larvicides are products used to eliminate mosquitoes before they become adults.
      • Apply larvicides directly to water sources that hold mosquito larvae.

    For more information about West Nile Virus visit the Be Mosquito Free webpage.

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    News release date: May 11, 2022


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    100 E. Weatherford, Fort Worth, Texas 76196