AstraZeneca Covid-19 vaccine 76pct effective in new analysis of US trial
Published: Mar 25, 2021 5:04 AM
AstraZeneca said its Covid-19 vaccine was 76 percent effective at preventing symptomatic illness in a new analysis of its major US trial - a tad lower than the level announced earlier this week in a report that was criticised for using outdated information.
US health officials had publicly rebuked the drugmaker for not using the most up-to-date information when it published an interim analysis on Monday that said the vaccine was 79 percent effective...
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