Local News
“We are now in the peak time for transmission of mosquito-borne disease to people and it is important for people to know that so they can take steps to protect themselves.”
The risk of West Nile virus is deemed “high” in ten communities across Massachusetts, as state public health officials reported on Tuesday.
The Department of Public Health indicated that areas such as Acton, Bedford, Billerica, Boston, Brookline, Carlisle, Chelmsford, Dracut, Lowell, and Newton have shown high levels of the virus based on mosquito samples collected there.
West Nile virus-positive mosquitoes were first detected on June 17, and since then, there have been 168 samples confirmed in multiple counties including Barnstable, Berkshire, Bristol, Dukes, Essex, Franklin, Hampden, Middlesex, Norfolk, Plymouth, Suffolk, and Worcester, according to DPH.
“The findings of West Nile virus in mosquitoes have risen significantly in recent weeks,” mentioned State Epidemiologist Catherine Brown. “We are at the peak time for the transmission of mosquito-borne diseases, so it’s crucial for everyone to take precautions.”
Although no human cases have been reported this year, a goat in Lunenburg tested positive for the virus. Last year, 19 people in the state were infected.
Most infected individuals might not show symptoms, but some may experience headaches, fever, nausea, vomiting, diarrhea, rash, or bodily aches. Generally, individuals recover without medical care, as noted by Boston health officials. However, those over 50 or with compromised immune systems are at a higher risk for severe illness from the virus.
“The heightened risk for West Nile virus in Boston serves as a reminder to protect yourself and your families from mosquito bites,” stated Dr. Bisola Ojikutu, Boston’s Commissioner of Public Health. “Residents should consider using mosquito repellent and limiting outdoor activities during dusk and dawn.”
It’s worth noting that West Nile virus is not the only mosquito-borne illness of concern; Eastern equine encephalitis (EEE) has also been identified in mosquitoes this year.
Officials noted that communities like Belchertown, Bridgewater, Carver, East Bridgewater, Easton, Granby, Halifax, Hanson, Lakeville, Middleborough, Pelham, Plympton, Raynham, Taunton, Ware, and West Bridgewater are at moderate risk for EEE.
No confirmed human cases of EEE have emerged so far this year. In 2024, there were four human cases, one of which was fatal, along with three animal cases.
“Both West Nile virus and EEE are risks for the population in Massachusetts,” Public Health Commissioner Robbie Goldstein said. “As warm, humid conditions continue, mosquito activity increases. I encourage everyone to take steps for protection: use insect repellent when outside and wear long sleeves and pants, especially during peak mosquito hours.”
Besides using repellent and avoiding peak hours, residents are urged to help safeguard their homes and pets by eliminating standing water and ensuring that screens are intact or repaired.
Residents can check the state’s map that tracks the risk for mosquito-borne illnesses in Massachusetts to assess the risk for EEE and West Nile virus in their vicinity.
