Businessinsider.co.za | AstraZeneca revises down its vaccine efficacy in a huge US trial - from 79% to 76%

Businessinsider.co.za | AstraZeneca revises down its vaccine efficacy in a huge US trial - from 79% to 76%

News24

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AstraZeneca said Thursday in updated results that its Covid-19 vaccine was still 100% effective at preventing severe disease and hospitalisation.

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