Efficacy of AstraZeneca Vaccine Called Into Question After Using Outdated Data
From good news to questions and concerns. AstraZeneca released details from its U.S. trials that their vaccine is 79% effective against Covid-19. Then, hours later, federal officials said that they might have used outdated information and was missing a month’s worth of data. AstraZeneca said it would release more data soon, but the damage may have already been done, another misstep in the rollout. Karen Weintraub, health reporter at USA Today, joins us for the latest.
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