West Nile virus detected in mosquitoes in Billerica

West Nile virus detected in mosquitoes in Billerica

BILLERICA — The Massachusetts Department of Public Health announced Tuesday that mosquitoes collected in Billerica tested positive for West Nile virus. West Nile virus is the most common mosquito-borne disease in the United States, according to the Centers for Disease Control and Prevention. People of all ages are able to be infected, but those over the age of 50 are at a higher risk for a severe infection. In a statement dated Tuesday, the Bill…