March 4, 2021 8:56 am COVID Vaccine Appointments Fully Booked at 3 Mass. Sites Thursday Officials said COVID-19 vaccine appointments were fully booked Thursday morning. US & World Videos 2:22 Boston hotel workers continue to strike 2:58 Tensions run high at Canton police audit meeting 2:24 Local pizza shop pushing back on soon-to-open Boston Papa John's 9:57 Protesters rally against mistrust in state leadership 2:38 Officials address violence at Revere High School