Covid-19: AstraZeneca vaccine prevents 79% of symptomatic disease and 100% of severe disease, US study finds
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22 March 2021Covid-19: AstraZeneca vaccine prevents 79% of symptomatic disease and 100% of severe disease, US study finds
Interim analysis of a phase III trial has found that the vaccine produced by Oxford University and AstraZeneca was 79% effective at preventing symptomatic covid-19 and 100% effective at preventing…
