Coronavirus January 26, 2021 7:11 am UMass Medical School to Begin Enrolment in Moderna's Teen COVID Vaccine Trail UMass Medical School in Worcester is slated to begin enrollment for Moderna’s clinical trial on the coronavirus vaccine among teenagers next month. US & World Videos 4:17 Police presence grows at pro-Palestinian encampment at Northeastern 5:39 Billerica police sergeant hit and killed by excavator during construction detail 2:31 Celtics preparing for pivotal Game 3 against Heat in Miami 2:37 Quincy detective resigns amid allegations of ‘unwelcome, sexually explicit conduct' 4:07 Officer hit and killed while working construction detail in Billerica, authorities say