The Connecticut Mosquito Management Program has announced that the first West Nile Virus (WNV) positive mosquitoes identified in the state this year were trapped in Milford on June 29th. The species of mosquito carrying West Nile Virus can be found in a wide variety of places, such as old tires, stagnant pools of ground water, artificial containers, or catch basins. The warm weather, high humidity, and recent rainfall create ideal conditions for increased mosquito activity in the weeks ahead. that have created ideal conditions that are conducive to the spreading of West Nile Virus infected mosquitos.

To this date there have not been any human cases in Connecticut this summer. In 2025, six Connecticut residents were hospitalized with WNV disease, and one death was reported among these. Most human infections are acquired from mosquito bites occurring during July through September.

The best way to prevent human cases of WNV and other mosquito-borne illnesses is by reducing the risk of being bitten by mosquitoes. Take steps to protect yourself by eliminating stagnant water in and around their properties.

• Dispose of water holding containers, such as ceramic pots, used tires, tire swings.
• Drill holes in bottoms of recycling containers.
• Clean clogged roof gutters.
• Turn over plastic wading pools, wheelbarrows, etc.
• Clean and chlorinate swimming pools that are not being used, including pool covers.
• Use landscaping to eliminate standing water on your property.
• Take additional steps to reduce mosquitoes around your home.

Protect yourself from mosquito bites by:

• Use EPA-registered insect repellent.
• Minimize time spent outdoors around dusk and dawn.
• Be sure door and window screens are tight fitting and in good repair.
• Wear shoes, socks, long pants, and a long sleeved shirt when and where mosquitoes are most active.
• Use mosquito netting when sleeping and to protect small babies when outdoors.
• Learn more about how to prevent mosquito bites here.