Officials from Winthrop, Revere and Chelsea signed an agreement for the North Suffolk Health Collaborative. The agreement between the three communities will allow for a partnering to address public health issues. From left are Nick LoConte, chair of the Winthrop Board of Health; Revere Mayor Brian Arrigo; Chelsea City Manager Tom Ambrosino; Winthrop Town Manager James McKenna; State Sen. Joe Boncore; Mark Fine and Gregory Miao of the Metropolitan Area Planning Council.