AstraZeneca’s COVID-19 vaccine is found to be 79% effective
NEW YORK — A U.S. trial of AstraZeneca’s coronavirus vaccine found that it completely prevented the worst outcomes from COVID-19. No subjects in the trial reported serious safety issues. More than 32,000 subjects participated in the trial, the largest yet for the AstraZeneca vaccine. Based on those results, it was 79% effective overall in preventing
