AstraZeneca may have used outdated info in vaccine trial: U.S.

AstraZeneca reported on Monday that its COVID-19 vaccine provided strong protection among adults of all ages in a long-anticipated U.S. study

AstraZeneca may have used outdated info in vaccine trial: U.S.
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AstraZeneca reported on Monday that its COVID-19 vaccine provided strong protection among adults of all ages in a long-anticipated U.S. study