06/01/2026
Mosquito surveillance season is underway in Connecticut. Starting today, CAES is trapping and testing mosquitoes across 88 municipalities statewide to monitor the risk of West Nile virus (WNV) and eastern equine encephalitis (EEE) through the end of October.
Last year, WNV was found in 230 mosquito samples across 37 towns, and six Connecticut residents became ill. EEE was not detected in 2025, but remains a serious concern, as it carries roughly a 40% mortality rate in humans.
A few easy ways to protect yourself and your family:
- Use repellents with DEET, Picaridin, or oil of lemon eucalyptus
- Wear long sleeves and pants around dusk and dawn
- Check your door and window screens for gaps
- Eliminate standing water around your home
For more infor, visit: portal.ct.gov/mosquito.