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(NECN) - Aerial spraying is done in southeastern Massachusetts but experts say people still need to be cautious.
The state department of public health announced Monday they finished spraying in 21 communities.
They say, however, while such spraying reduces the risk of dangerous, mosquito-borne illnesses, it does not eliminate it.
So people should make sure to use insect repellent, cover exposed skin outside and avoid outdoor activity between dusk and dawn.