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Pfizer-BioNTech files for US approval of Covid vaccine

The Pfizer-BioNTech vaccine was the first to be authorized in the United States for emergency use in December based on two months of safety data for a 44,000-person clinical trial
Last Updated : 07 May 2021, 17:07 IST
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Published 07 May 2021, 17:07 IST

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