West Nile Virus Found In Stoneham Mosquito Sample

STONEHAM, MA — West Nile virus has been detected in mosquitoes collected in Stoneham, prompting local health officials to remind residents to take precautions against mosquito bites.

The Massachusetts Department of Public Health announced on July 22 that mosquitoes collected in Stoneham tested positive for West Nile virus. While anyone can become infected, adults over the age of 50 are at a higher risk of developing severe illness.

West Nile virus is most commonly spread through the bite of an infected mosquito. To reduce the risk of infection, Stoneham health officials are encouraging residents to use insect repellents containing DEET, picaridin, IR3535, oil of lemon eucalyptus or permethrin when spending time outdoors. DEET products should not be used on infants younger than 2 months old and should be limited to concentrations of 30 percent or less for older children. Oil of lemon eucalyptus should not be used on children younger than 3 years old, while permethrin products are intended for use on clothing and outdoor gear rather than directly on the skin.

Residents are also encouraged to wear long sleeves, long pants and socks when outdoors whenever practical, particularly between dusk and dawn when many mosquitoes are most active. Officials recommend avoiding mosquito bites by moving indoors, covering exposed skin or applying insect repellent if mosquitoes are present. Homeowners should also eliminate standing water where mosquitoes can breed by emptying birdbaths, flowerpots and other containers, cleaning gutters and drains, and ensuring window and door screens are properly fitted and in good repair.

Stoneham Public Health said it will continue working closely with the Massachusetts Department of Public Health and other agencies to monitor mosquito activity while providing updates and educational information to residents. Additional information about West Nile virus and mosquito surveillance across Massachusetts is available through the state's arbovirus monitoring program.