NEWBURY — Three towns were sprayed with insecticide Monday to prevent the potential spread of mosquito-borne diseases.
The truck-based operation follows a helicopter spraying of marshes last week.
Eastern equine encephalitis (EEE) has become a public health concern in recent weeks with seven people — including one fatality — infected with the disease.
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The state Department of Health & Human Services said 400 mosquitoes have tested positive as carriers of the disease.
Although southern parts of the state are more severely affected, some North Shore communities have been placed at moderate risk.
In Rhode Island, health officials said a person died from EEE Sunday.
Meanwhile, Groveland, Newbury and West Newbury have been informed by the Northeast Massachusetts Mosquito Control and Wetlands Management District that portions of each community will undergo truck-based mosquito spraying tonight, health officials said.
West Newbury and Groveland remain at a “moderate” risk classification for the transmission of Eastern Equine Encephalitis (EEE), and Newbury remains at a “low” risk classification.