AstraZeneca shots 74pct effective in trial

Updated September 29 2021 - 9:20pm, first published 9:16pm
AstraZeneca's overall efficacy in the study was lower than the 79 per cent figure reported in March.

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

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