AstraZeneca U.S. trial data a confidence booster for COVID-19 shot

18:11 22/3/2021 - Πηγή: In.gr
Based on more than 32,000 people, the trial was larger and around 20% of volunteers were aged 65 and above, compared to 5.7% in an earlier British trial. The scarcer data had made some European countries hesitant to use the AstraZeneca shot on older people.
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