The Massachusetts Department of Public Health has raised the West Nile Virus risk level from low to moderate in Natick after mosquito samples in neighboring communities tested positive. The virus, usually transmitted to humans via mosquito bites, can cause serious illness.
Three human cases of West Nile Virus have been reported in the state, all in Middlesex County, of which Natick is part. Though no positive samples have been collected yet in Natick itself. Positive samples have been identified in neighboring Wellesley, part of Norfolk County.
The mosquitos that carry the virus have thrived in the damp and humid conditions locally this summer.
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