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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    West Nile Virus (WNV) Mosquito Test Results

    Metadata Updated: January 25, 2026

    List of locations and test results for pools of mosquitoes tested through the Chicago Department of Public Health Environmental Health program. The Chicago Department of Public Health maintains an environmental surveillance program for West Nile Virus (WNV). This program includes the collection of mosquitoes from traps located throughout the city; the identification and sorting of mosquitoes collected from these traps; and the testing of specific species of mosquitoes for WNV.

    As of 5/28/2024, this dataset includes trap records where zero female Culex mosquitoes were collected and therefore no testing was performed. The filtered view featured below excludes these records, so should work for any uses based on the prior version of this dataset.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date November 10, 2020
    Metadata Updated Date January 25, 2026

    Metadata Source

    Harvested from Chicago JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 10, 2020
    Metadata Updated Date January 25, 2026
    Publisher data.cityofchicago.org
    Maintainer
    Identifier https://data.cityofchicago.org/api/views/jqe8-8r6s
    Data First Published 2026-01-13
    Data Last Modified 2026-01-22
    Category Health & Human Services
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.cityofchicago.org/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 15d41fa0-c251-4efd-9cce-53e9042bf1ca
    Harvest Source Id 7590e386-229e-453a-8e53-6f18e200e421
    Harvest Source Title Chicago JSON
    Homepage URL https://data.cityofchicago.org/d/jqe8-8r6s
    Source Datajson Identifier True
    Source Hash fed42257a61668f2e25dc047e3b530cce4dc823db1054207410ae2ac353a3a65
    Source Schema Version 1.1

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