In South Africa, a 2-dose Oxford/AZ vaccine did not prevent mild to moderate COVID-19 (cases mainly B.1.351 variant).
Level V
Where this comes from
- Record sourced from PubMed, PMID 33939483.
- Also identified by DOI 10.7326/ACPJ202105180-050.
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Abstract
Madhi SA, Baillie V, Cutland CL, et al. <b>Efficacy of the ChAdOx1 nCoV-19 Covid-19 vaccine against the B.1.351 variant</b>. N Engl J Med. 2021. [Epub ahead of print.] 33725432.
Medical subject headings
- COVID-19
- Vaccines