After Adjusting for New Data, AstraZeneca Vaccine Is 76% Effective Against COVID-19

AstraZeneca and their vaccine has been on a rollercoaster ride this week as we learned that their shot is 76% effective against symptomatic Covid-19. On Monday it was 79%, then U.S. officials said they were using outdated data, and finally came back with the correction. Karen Weintraub, healthcare reporter at USA Today, joins us for the difficult rollout of this vaccine. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com