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Emergence of SARS-CoV-2 Omicron lineages BA.4 and BA.5 in South Africa

27 Jun 2022

Abstract excerpt

Three lineages (BA.1, BA.2 and BA.3) of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant of concern predominantly drove South Africa's fourth Coronavirus Disease 2019 (COVID-19) wave. We have now identified two new lineages, BA.4 and BA.5, responsible for a fifth wave of infections. The spike proteins of BA.4 and BA.5 are identical, and similar to BA.2 except for the addition of...

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PMID: 35760080
DOI: 10.1038/s41591-022-01911-2

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