DARTMOUTH — The Massachusetts Department of Public Health confirmed on July 23 that West Nile virus (WNV) has been detected in mosquitoes collected in the northeastern section of Dartmouth, marking the first reported case in the area this year.
Christopher Michaud, Director of Public Health, warns residents that while the infected mosquitoes were found in one specific area, the entire town is potentially at risk due to widespread mosquito habitats.
The state health officials urge the public, especially those over 50, to take preventive measures against mosquito bites.
Residents are advised to use insect repellents containing DEET, permethrin, picaridin, IR3535, or oil of lemon eucalyptus, following the instructions on the labels.
People are cautioned against using DEET on infants under two months and to use lower concentrations for older children, while oil of lemon eucalyptus is not recommended for children under three.
Applying permethrin to clothing and gear, rather than skin, can also provide protection.
Covering up with long-sleeved shirts, long pants, and socks during peak mosquito hours—from dusk to dawn—can reduce the chance of bites.
The health department suggests rescheduling outdoor activities planned during these times or taking protective measures if mosquitoes are present.
Homeowners are encouraged to mosquito-proof their homes by draining standing water where mosquitoes lay eggs and ensuring that window and door screens are in good repair to keep mosquitoes out.
For more information on how to protect against WNV and other mosquito-borne diseases, Dartmouth residents can visit the Board of Health’s mosquito information page at https://ma-dartmouth.civicplus.com/640/Mosquito-Information.
Current and historical data on WNV activity in Massachusetts are available at the MDPH website: www.mass.gov/dph/mosquito.
