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AstraZeneca COVID-19 vaccine shows 74% efficacy in large US trial

September 30, 2021 BDNEWS, bdnews24.com - Home

AstraZeneca Plc's COVID-19 vaccine demonstrated 74 percent efficacy at preventing symptomatic disease, a figure that increased to 83.5 percent in people aged 65 and older, according to long-awaited results of the company's US clinical trial published on Wednesday.

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