Advanced trial data from a U.S. study on the AstraZeneca COVID-19 vaccine shows it is 79% effective, the company announced Monday in long-awaited research that may answer some questions about the shot’s effectiveness in older populations.
AstraZeneca: study shows COVID-19 vaccine is 79 percent effective https://t.co/yuAlnFcgcq pic.twitter.com/VtsW7D6l33
— New York Post (@nypost) March 22, 2021
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