2022 Mosquito Season

Eastern Equine Encephalitis (EEE) Virus
Fact Sheet - English
Fact Sheet - Spanish
Easy-Read Version (on State webpage)

The West Nile Virus is another disease mosquitoes can carry and should not be overlooked. 

West Nile Virus
Fact Sheet - English
Fact Sheet - Spanish
Easy-Read Version (on State webpage)

Did you know?  The State Department of Public Health in collaboration with the State Reclamation and Mosquito Control Board and local Mosquito Control Districts conducts surveillance for mosquito-borne viruses through mosquito traps set throughout Massachusetts. 

Surveillance (Arbovirus) data for 2022 will be updated accordingly on the State website, weekly, beginning sometime in June through October (See below)

EEE and WNV Risk Map Icon with link

Protect Yourself

Apply Insect Repellent When Outdoors Does your repellent contain an EPA-registered ingredient like...
*Oil of Lemon Eucalyptus

Warning: DEET products should not be used on infants under 2 months and concentrations 30% OR LESS on older children
Warning: Oil of Lemon Eucalyptus should not be used on children under three years of age.


Be Aware/Avoid Peak Mosquito HoursMosquitoes are most active between dusk and dawn

Use Clothing As ProtectionWearing long-sleeves, long pants and socks when able, helps to limit exposed skin available for biting
Drain Standing Water Around Your YardDon't let mosquitoes have a good place to lay their eggs.
Install/Repair ScreensBy installing and repairing screens, that will keep mosquitoes OUT

Protect Your Animals

Reduce Potential for Breeding SitesThis can be done by eliminating stagnant or standing water that may be caused by overflow of animal water troughs, pooling irrigation water, etc.  As well as standing/stagnant water in buckets, flower pots and old tires

Also, eliminate piles of decaying organic matter, such as leaves, lawn clippings and manure

Keep animals in indoor stallsIt is advised to do this when/if possible between the hours of dusk and dawn.

Talk to your Veterinarian Talk to your Vet about repellents approved for use on animals AND vaccines that may prevent WNV and EEE viruses

Learn more here...

Protect children from Mosquito Bites State infographic