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. 2021 Apr;27(4):622-625.
doi: 10.1038/s41591-021-01285-x. Epub 2021 Mar 2.

SARS-CoV-2 501Y.V2 escapes neutralization by South African COVID-19 donor plasma

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SARS-CoV-2 501Y.V2 escapes neutralization by South African COVID-19 donor plasma

Constantinos Kurt Wibmer et al. Nat Med. 2021 Apr.

Abstract

SARS-CoV-2 501Y.V2 (B.1.351), a novel lineage of coronavirus causing COVID-19, contains substitutions in two immunodominant domains of the spike protein. Here, we show that pseudovirus expressing 501Y.V2 spike protein completely escapes three classes of therapeutically relevant antibodies. This pseudovirus also exhibits substantial to complete escape from neutralization, but not binding, by convalescent plasma. These data highlight the prospect of reinfection with antigenically distinct variants and foreshadows reduced efficacy of spike-based vaccines.

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