Newton's West Nile Virus Risk Raised To High

NEWTON, MA — The city's risk level for West Nile virus has been elevated to high following the confirmation of the first human case in Middlesex County this year, Mayor Marc Laredo announced.

The Massachusetts Department of Public Health elevated the city's risk level after confirming the human case on Thursday, Aug. 20. During a high-risk period, state health officials recommend that people over 50 and those who are immunocompromised adjust outdoor activities to avoid peak mosquito hours between dusk and dawn.

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Most people infected with West Nile virus do not develop symptoms, though about 1 in 5 develop a fever along with symptoms that can include headaches, body aches, joint pain, vomiting, diarrhea, or a rash. Most recover completely, but fatigue and weakness can persist for weeks or months. About 1 in 150 infected people develop a severe illness affecting the central nervous system, including meningitis or encephalitis. Older adults and those with certain medical conditions are at greater risk of severe illness, which in some cases can result in lasting effects or death.

Newton officials are encouraging residents to use EPA-registered insect repellent when spending time outdoors and to wear long sleeves, pants, and socks when practical. Residents should also consider limiting outdoor activities between dusk and dawn, when mosquitoes are most active.

Homeowners can help reduce mosquito breeding by eliminating standing water around their properties, including small amounts of water where mosquitoes can breed. Window and door screens should also be tightly fitted and repaired or replaced if damaged.

The city's risk level for Eastern equine encephalitis, another mosquito-borne illness monitored by the state, remains low.

The Massachusetts Department of Public Health continues to conduct seasonal surveillance for both West Nile virus and Eastern equine encephalitis, updating community risk levels throughout the summer. Residents can monitor the latest mosquito testing results and community risk levels through the state's online arbovirus surveillance maps.

Residents with questions or concerns can contact Newton Health and Human Services at 617-796-1420.

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