Chicago West Nile Virus Mosquito Trap Test Results

Over 5,000 trap records document mosquito collection and West Nile Virus testing across Chicago wards and community areas. The Chicago Department of Public Health Environmental Health program gathers this data through its environmental surveillance program, with records updated through 2024.

Use Cases

• Predict RESULT (positive/negative) using TRAP location, SPECIES, and SEASON YEAR features for outbreak forecasting.
• Map WNV risk by correlating positive RESULT counts with ZIP CODE or COMMUNITY AREA NAME for targeted interventions.
• Analyze SPECIES distribution and NUMBER OF MOSQUITOES per TRAP_TYPE across different WARDs to inform trap placement.
• Model temporal trends by linking TEST DATE and WEEK to RESULT for seasonal risk analysis.

Strengths

• Includes precise geospatial coordinates (LATITUDE, LONGITUDE) for trap locations.
• Contains detailed administrative boundaries (Wards, Community Areas, Census Tracts, Zip Codes).
• Records specific mosquito SPECIES and TEST DATE for temporal analysis.

Limitations

• Sample size and row count are unknown, limiting statistical reliability assessments.
• Data includes trap records with zero mosquitoes collected, requiring filtering for analysis.
• Potential geographic bias as data is limited to the city of Chicago.

Provenance

Source

Chicago Department of Public Health Environmental Health program.

Collection Method

Collection from mosquito traps throughout the city, followed by species identification and WNV testing.

Time Range

Includes SEASON YEAR and TEST DATE columns; specific range unknown.

Freshness

Updated through 2024, with a platform last updated date of 2026-03-25.

Geography

City of Chicago, Illinois, USA.