State to close 4 vaccination sites for more focused approach MARK PRATT, Associated Press FacebookTwitterEmail FILE - In this Feb. 11, 2021, file photo, people are administered COVID-19 vaccines at a vaccination center, at Gillette Stadium, in Foxborough, Mass. Massachusetts plans on closing down four of its seven mass vaccination sites, including the Gillette Stadium site, by the end of June in favor of a more targeted approach at reaching the roughly 30% of the state's eligible population that has not yet received at least one dose, Gov. Charlie Baker said Monday, May 3.Steven Senne/AP Massachusetts plans on closing four of its seven mass vaccination sites by the end of June in favor of a more targeted approach to reach the roughly 30% of the state's eligible population that has not yet received at least one dose of a coronavirus vaccine, Gov. Charlie Baker said Monday.