COVID-19 April 15, 2021 1:55 pm Pfizer CEO Says Booster Shot Likely Needed Within 12 Months Albert Bourla, Pfizer’s CEO, said Thursday people will “likely” need athird dose of its COVID-19 vaccine within a year of getting the first two doses. US & World Videos 6:03 Tensions rise during campus protests at MIT and Harvard 20:19 Karen Read's attorney accuses witness of perjury at murder trial 2:20 Steward Health Care files for bankruptcy 2:25 East Boston woman recovering after stabbing 6:19 Police surround pro-Palestinian encampment at MIT
