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Published 12:12 IST, November 24th 2020

Oxford's COVID-19 vaccine reached 90% efficacy due to dosing error; here's how it happened

“Serendipity” of error, led Oxford University-AstraZeneca vaccine trails to reach 90% efficacy as researchers accidentally gave some participants half doses.

Reported by: Aanchal Nigam
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12:14 IST, November 24th 2020