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Published 14 days ago • loading... • Updated 13 days ago
West Nile virus detected in Massachusetts mosquitoes for first time this year
On Thursday, the Massachusetts Department of Public Health announced the first West Nile virus-positive mosquito sample of 2026, collected June 16 in Clarksburg, Berkshire County.
Mosquitoes transmit West Nile virus to humans through bites, yet no human or animal cases have been detected in Massachusetts so far this year.
While most infected people experience no symptoms, about 20% develop fever, headache, and body aches; those older than 50 have a higher risk for "severe disease," the DPH said.
Public Health Commissioner Robbie Goldstein advised using EPA-registered repellent, draining standing water, and wearing protective clothing, stating, "WNV can cause serious illness, especially in those who are more vulnerable."
In 2025, nine people contracted the virus in Massachusetts, and officials are monitoring for Eastern Equine Encephalitis, though no evidence has been found this season.