News Flash

Town of Randolph

Posted on: August 9, 2023

Mosquitoes in Quincy and Easton Test Positive for West Nile Virus

picture of a mosquito with the words west-nile-virus

August 9, 2023- The Randolph Health Department and Director Gerard Cody want to inform the public that the Massachusetts Department of Public Health (MDPH) announced that West Nile virus (WNV) has been detected in mosquitoes collected from the City of Quincy and Town of Easton, Massachusetts.  Randolph has not had any WNV positive mosquito or human cases so far this season. WNV is most commonly transmitted to humans by the bite of a mosquito infected with the virus.  While WNV can infect people of all ages, people over the age of fifty (50) are at higher risk for severe infection.

Culex mosquitoes are the primary vectors of West Nile Virus. The virus is transmitted to humans by the bite of an infected mosquito. Culex mosquitoes prefer to lay their eggs in clogged rain gutters, discarded automobile tires, buckets and other water holding containers.  Residents have an important role to play in reducing the risk of WNV and protecting themselves and their loved ones by taking a few, common-sense precautions. Limit the number of places around your home for mosquitoes to lay eggs by either draining or getting rid of items that hold water. Check rain gutters and drains, empty any unused flowerpots and wading pools, and change water in birdbaths frequently. Install or Repair Screens - Some mosquitoes like to come indoors. Keep them outside by having tightly-fitting screens on all of your windows and doors.

You may also avoid Mosquito bites by following these simple steps.  

Be Aware of Peak Mosquito Hours - The hours from dusk to dawn are peak biting times for many mosquitoes. Consider re-scheduling outdoor activities that occur during evening or early morning. Otherwise, take extra care to use repellent and protective clothing.

Clothing can help reduce mosquito bites. Although it may be difficult to do when it’s hot, wearing long-sleeves, long pants and socks when outdoors will help keep mosquitoes away from your skin.

Apply Insect Repellent when you go outdoors. Use a repellent with DEET (N, N-diethyl-m-toluamide), permethrin, picaridin (KBR 3023), IR3535 or oil of lemon eucalyptus [p-methane 3, 8-diol (PMD)] according to the instructions on the product label.  DEET products should not be used on infants under two months of age and should be used in concentrations of 30% or less on older children.  Oil of lemon eucalyptus should not be used on children under three years of age.  Permethrin products are intended for use on items such as clothing, shoes, bed nets and camping gear and should not be applied to skin. 

Information about WNV and reports of WNV activity in Massachusetts during 2023 can be found on the MDPH website at For more information please contact Ann Martin, Public Health Nurse, at 781-961-0924 or

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