» » » AstraZeneca says U.S. trial data shows vaccine 79% effective

Scientists have been awaiting results of the U.S. study in hopes it will clear up some of the confusion about just how well the shots really work

https://ift.tt/eA8V8J< March 22, 2021 at 02:27PM> from The Hindu - International https://ift.tt/2PgkvMl

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