Overview

• Mosquitoes trapped in Bridgeport on June 11 tested positive for West Nile virus, marking Connecticut’s first case of the 2025 season.
• John Shepard of the Connecticut Agricultural Experiment Station said this year’s finding ranks among the earliest virus detections since the program began in 1999.
• The state’s mosquito management program plans to expand trapping and testing at 108 stations across 88 towns to track viral spread through summer.
• According to the U.S. Centers for Disease Control and Prevention, 11 other states have reported West Nile virus this year with 16 human infections, including seven neuroinvasive cases.
• Officials advise residents, especially those over 60 at highest risk, to avoid outdoor exposure at dawn and dusk, use EPA-registered repellents, wear long clothing and maintain secure window screens.