Boston December 20, 2021 11:06 am Wu Issues Vaccine Mandate for Boston Indoor Businesses Boston Mayor Michelle Wu announced a new proof of vaccination requirement for restaurants and other indoor venues including gyms and theaters on Monday. US & World Videos 1:29 Sumner Tunnel in Boston to close for one month 2:17 Testimony underway in Karen Read murder trial 2:03 Mass. school officials threaten to suspend student protesters 2:13 Karen Read trial Day 6: Witness testimony resumes 4:02 ‘To Catch a Contractor' series leading to changes