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Davis Mosquito Abatement District Releases Historical West Nile Virus Data

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A macro photograph of a water droplet clinging to a blade of grass near a quiet Utah wetland at dawn, symbolizing the hidden presence of mosquito-borne pathogens in the environment. The lighting is moody and cool, emphasizing the stillness of the habitat where West Nile virus is monitored. No insects or people are visible; the focus is entirely on the natural landscape and the moisture that sustains mosquito breeding grounds.
Photo via AI illustration
The Davis Mosquito Abatement District released historical data regarding West Nile virus detections in mosquito pools throughout Davis County. The records track virus presence in the region dating back to 2004.

Key takeaways

  • West Nile virus has been detected in Davis County mosquito pools since 2004.
  • The Davis Mosquito Abatement District began providing detailed city-level positivity rates and location data in 2021.
  • Historical records are available for the years 2021, 2022, 2023, 2024, and 2025.
  • The district's datasets include both specific mosquito pool test results and general West Nile data.

The Davis Mosquito Abattement District released historical data on Monday detailing West Nile virus detections within mosquito pools across Davis County. The records provide a longitudinal look at the presence of the virus in the region, which has been documented in local mosquito populations since 2004.

Longitudinal Virus Detection Records

According to data provided by the Davis Mosquito Abatement District, the presence of West Nile virus has been confirmed in mosquito pools throughout Davis County for over two decades. The district's records show that the virus has been identified in local mosquito populations since 2004.

Expanded Public Reporting Capabilities

Since 2021, the district has expanded its reporting capabilities to offer more granular information to the public. This enhanced reporting allows for more detailed tracking of exactly where mosquito pools are testing positive for the virus and provides specific positivity rates within individual cities.

Analyzing Yearly Virus Trends

The historical archives maintained by the district include a yearly breakdown of both pool results and broader West Nile data. These records allow residents and health officials to track trends in virus activity across different years.

Available Annual Dataset Details

The available datasets include specific results for the 2025 West Nile season, as well as detailed annual records for 2024, 2023, 2022, and 2021. Each of these years contains both mosquito pool test results and general West Nile data points.

Public Resource for Virus Prevalence

By providing access to these historical findings, the Davis Mosquito Abatement District maintains a public record of virus prevalence in the county. The information serves as a resource for understanding how mosquito-borne illness has moved through the local environment over the last twenty-two years.

Sources used (2)

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Corroborated by 2 independent sources

Utah News confirmed this story across multiple independent newsrooms before publishing.

kslnewsradio.comdavismosquitoutah.gov

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Coverage collected from the outlets listed above. · June 29, 2026

Written by AI

Utah News AI (on-device model) · drawing on 2 outlets · June 29, 2026

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Passed editorial quality review (100/100)

Published

56 days ago · June 29, 2026

This story was written by AI from the public sources listed above and passed automated quality review before publishing.

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CategoryMulti-Source
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SourceAI Generated