SARS-CoV-2 501Y.V2 escapes neutralization by South African COVID-19 donor plasma
Preprint — published as 10.1038/s41591-021-01285-x · Paper page
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.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Other groups have reported comparable findings with vaccinee and convalescent plasma across various pseudotype and authentic virus assays.
“In addition, similar results have been reported by others using vaccinee and convalescent plasmas and a variety of different pseudotype and authentic virus assays15,31,45–49.”
From mRNA vaccine-elicited antibodies to SARS-CoV-2 and circulating variants (2021) · cites this paper as [47]
Further mutations in spike protein observed in other novel lineages appear to be driven by escape of the virus from the neutralising activity of public antibodies, indicating that prevention of transmission might be temporary as the virus adapts to natural or vaccine-induced immunity.
“However, it should be noted that further mutations in spike protein observed in other novel lineages7, 8 appear to be driven by escape of the virus from the neutralising activity of public antibodies,40, 41 indicating that prevention of transmission might be temporary as the virus adapts to natural or vaccine-induced immunity.”
The E484K mutation has been reported to abolish or substantially reduce neutralization by multiple potent monoclonal antibodies and polyclonal convalescent sera in both wild-type and pseudo-virus neutralization assays.
“The E484K mutation has been reported to abolish or substantially reduce neutralization by multiple potent monoclonal antibodies and polyclonal convalescent sera in both wild-type and pseudo-virus neutralization assays.12,13,17,18,22”
From Efficacy of NVX-CoV2373 Covid-19 Vaccine against the B.1.351 Variant (2021) · cites this paper as [22]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
No citation lists for this paper
No citation lists for this paper yet — checked again daily.
- Authors
- Wibmer, C. K., Ayres, F., Hermanus, T., Madzivhandila, M., Kgagudi, P., Oosthuysen, B., Lambson, B. E., de Oliveira, T., Vermeulen, M., van der Berg, K., Rossouw, T., Boswell, M., Ueckermann, V., Meiring, S., von Gottberg, A., Cohen, C., Morris, L., Bhiman, J. N., & Moore, P. L.
- ORCID
- Publisher
- openRxiv
- Published
- 2021-01-19
- PMC
- PMC7836116
- Type
- Preprint
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
