In South Africa, a 2-dose Oxford/AZ vaccine did not prevent mild to moderate COVID-19 (cases mainly B.1.351 variant) Academic Article uri icon

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abstract

  • SOURCE CITATION: Madhi SA, Baillie V, Cutland CL, et al. Efficacy of the ChAdOx1 nCoV-19 Covid-19 vaccine against the B.1.351 variant. N Engl J Med. 2021. [Epub ahead of print.] 33725432.

publication date

  • May 2021