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AstraZeneca COVID-19 vaccine 76% effective in new analysis of US trial

March 25, 2021 BDNEWS, bdnews24.com - Home

AstraZeneca said its COVID-19 vaccine was 76% 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its major US trial - a tad lower than the level announced earlier this week in a report that was criticised for using outdated information.

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