The findings of a large U.S. trial have shown that the coronavirus vaccine developed by AstraZeneca and the University of Oxford is 79% effective in preventing symptomatic illness and 100% effective against severe disease and hospitalization. CNBC's Meg Tirrell reports.
By: CNBC Television
Title: AstraZeneca vaccine found to be 79% effective in U.S. trial
Sourced From: www.youtube.com/watch?v=nRmMZQpVNpY
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