After U.S. health officials called out AstraZeneca for using “outdated information” in its vaccine trial results, the drugmaker has released updated data showing its vaccine is 76% effective against symptomatic COVID-19. Dr. Leo Nissola spoke with Anne-Marie Green and Vladimir Duthiers on CBSN about whether the change is significant, plus he discusses a study that found U.S. media coverage of the pandemic is more negative than other countries’.
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