Participants may use mosquito abundance and infection data compiled by VectorSurv to supplement their forecast models. Updated current season data will be released on the 15th of each month beginning April 15th, 2023. Initial data files will be available on April 1st, 2023, including historical data for prior years where available.
Please note that the data available are not exhaustive. Data are provided through partnerships with local vector control and public health agencies using VectorSurv. The agencies represented in the provided data have opted to provide their surveillance data to inform model predictions; these agencies represent a subset of jurisdictions from some U.S. states (see list below). Note that differences in available mosquito data may exist between agencies (e.g., time period of available historical data, trap types, species categories) and not all states collect mosquito data. Data may also change as the year progresses (e.g., due to edits or additions of historical data). Therefore, new versions of the data will be posted on each release date.
This dataset includes monthly adult trapping data for Culex tarsalis, Culex pipiens complex (Culex pipiens, Culex quinquefasciatus, and their hybrids), Culex restuans, Culex stigmatosoma, Culex salinarius, and Culex nigripalpus) by county, trap type, and species. This includes data on the total trapping effort (number of sites, trap nights, and collections) and the collections of each species (number of adults collected and number of collections in which the species was detected).
This dataset includes monthly testing of adult female mosquitoes for West Nile virus by county and trap type. Mosquitoes are commonly tested in pools (i.e., batches) of 1-50 mosquitoes per pool. These data include information on the total testing volume (number of pools tested and number of mosquitoes tested) and the results of testing for West Nile virus (number of pools positive for West Nile virus).
Please cite VectorSurv in any publications that utilize these mosquito surveillance data, which helps us to justify VectorSurv's data services. A suggested citation is below:
VectorSurv Development Team. 2023. VectorSurv: Vectorborne Disease Surveillance System. URL: https://vectorsurv.org
These data are generated by the hard work of the many partner agencies listed below who have chosen to provide their surveillance data in an open-access format for your use. Please acknowledge their contributions wherever possible (e.g., by listing the agencies in acknowledgements or a supplementary table in publications).
- Maricopa County Environmental Services, Vector Control
- Pima County Health Department
- Pinal County Public Health Services District Environmental Health
- Yuma County Pest Abatement District
- Alameda County Mosquito Abatement District
- Alameda County Vector Control Services District
- Butte County Mosquito and Vector Control District
- Coachella Valley Mosquito and Vector Control District
- Colusa Mosquito Abatement District
- Consolidated Mosquito Abatement District
- Contra Costa Mosquito and Vector Control District
- Delta Mosquito and Vector Control District
- East Side Mosquito Abatement District
- Fresno Westside Mosquito Abatement District
- Glenn County Mosquito and Vector Control District
- Greater Los Angeles County Vector Control District
- Kern Mosquito & Vector Control District
- Marin/Sonoma Mosquito and Vector Control District
- Mosquito and Vector Management District of Santa Barbara County
- Placer Mosquito and Vector Control District
- Presidio Trust
- Riverside County Environmental Health-Vector Control
- Sacramento-Yolo Mosquito and Vector Control District
- San Gabriel Valley Mosquito and Vector Control District
- Santa Clara County Vector Control District
- Shasta Mosquito and Vector Control District
- Sutter-Yuba Mosquito & Vector Control District
- Turlock Mosquito Abatement District
- Ventura County Vector Control Program
- West Valley Mosquito & Vector Control District
- Boulder County Public Health
- Delaware Public Health District
- Gem County Mosquito Abatement
- Calcasieu Parish Mosquito & Rodent Control
- Iberia Parish Mosquito Control
- Ouachita Parish Mosquito Abatement District No. 1
- Tangipahoa Mosquito Abatement District
- Brunswick County
- Forsyth County Department of Public Health
- Gaston County Department of Health & Human Services
- New Hanover County
- Onslow County
- Pitt County
- Transylvania County
- Cass County Vector Control
- North Dakota Department of Disease Control
- Wahpeton Vector Control
- Williston Vector Control District
- Central District Health Department
- Douglas County Health Department
- North Central District Health Department
- Panhandle Public Health District
- West Central District Health Department
- Winnebago Public Health Department
- Atlantic County Office of Mosquito Control
- Bergen County Mosquito Control
- Camden County Mosquito Control
- Cape May County Dept. Of Mosquito Control
- County of Passaic Department of Health Services - Mosquito Control Division
- Cumberland County Mosquito Control Division
- Essex County Mosquito Control
- Gloucester County Mosquito Control
- Hudson Regional Health Commission
- Hunterdon County Mosquito & Vector Control
- Mercer County Mosquito Control
- Middlesex County Mosquito Extermination Commission
- Monmouth County Mosquito Control
- Morris County Mosquity Control
- Ocean County Mosquito Control
- Office of Mosquito Control Coordination
- Salem County Mosqito Control
- Somerset County Mosquito Control
- Sussex County Office of Mosquito Control
- South Dakota Department of Health
- Cache Mosquito Abatement District
- Mosquito Abatement District-Davis
- Salt Lake City Mosquito Abatement District
- South Salt Lake Valley Mosquito Abatement District
- Adams County Mosquito Control District
- Benton County Mosquito Control District
- Callam County Health & Human Services
- Grant County Mosquito Control District
- Klickitat County Public Health
- Tacoma-Pierce County Health Department
- Washington State Department of Health
- Whatcom County Health Department
- Teton County Weed and Pest