Overview

• Mosquito samples trapped in Bridgeport tested positive for West Nile virus, marking Connecticut’s first detection this season, the Connecticut Agricultural Experiment Station said.
• A southern Illinois resident was hospitalized with West Nile virus, becoming the state’s first human case of the year and the earliest onset since 2016, officials reported.
• The Illinois Department of Public Health has confirmed West Nile virus in mosquitoes from 19 counties so far in 2025, up from the initial detection in Rockford on May 9.
• About one in five infected individuals develop fever and flu-like symptoms while roughly one in 150 may experience severe neurological complications from the virus.
• Health agencies advise using EPA-registered repellents, wearing long sleeves and pants during dawn and dusk, and eliminating standing water to curb mosquito breeding.