West Nile Virus Confirmed in Mosquitoes from Cambridge

The Massachusetts Department of Public Health (MA DPH) announced on August 13 that West Nile virus (WNV) has been detected in mosquitoes collected in Cambridge, Massachusetts. The current WNV risk in Cambridge is “Moderate.” Moderate means that an “infection of WNV is likely or has already occurred.” So far this summer, no human cases of WNV have occurred in Massachusetts. 

WNV is commonly transmitted to humans through the bite of an infected mosquito. While most people do not get severe symptoms from WNV, people over the age of 60 and those with certain chronic medical conditions are more likely to develop severe illness.  

The Cambridge Public Health Department wants to remind Cambridge residents to take precautions in avoiding mosquito bites as it is the best way to prevent West Nile virus.  

Avoid Mosquito Bites

There are simple things residents can do to prevent mosquito bites:

• Apply insect repellent when outdoors. Follow the directions on the package.
• Being aware of peak mosquito hours (dusk to dawn).  
• Wearing long sleeves, long pants, and socks when outdoors to keep mosquitoes away from your skin.
• Mosquito-proofing your home by draining standing water and using tight-fitting screens in windows and doors.
• Using mosquito netting on strollers and playpens.

More information about mosquito-borne illnesses can be found on the Cambridge Public Health Department’s website and the MA DPH website. You can also check MA DPH’s online risk level maps for updates on when and where WNV activity is occurring.