National Health & Safety AstraZeneca Chastised For For Using Outdated Data To Claim A Vaccine Efficacy Of 79% 4:25pm March 23, 2021 by Joe Palca Health Medical Treatments National Share URL copied to clipboard! Copyright 2021 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered Arts National Revisiting our talk about the podcast 'You Didn't See Nothin,' now a Pulitzer winner Books Arts National Colm Toibin vowed to never write a sequel. Until 'Long Island' 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate