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Cited by 361

The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.

Neutralizing antibodies against the SARS-CoV-2 Omicron variant BA.1 following homologous and heterologous CoronaVac or BNT162b2 vaccination

Open access
Cheng, Samuel M. S., Mok, Chris Ka Pun, Leung, Yonna W. Y., Ng, Susanna S., Chan, Karl C. K., Ko, Fanny W., Chen, Chunke, Yiu, Karen, Lam, Bosco H. S., Lau, Eric H. Y., Chan, Ken K. P., Luk, Leo L. H., Li, John K. C., Tsang, Leo C. H., Poon, Leo L. M., Hui, David S. C., Peiris, Malik·2022·Nature Medicine

Abstract

The Omicron variant is rapidly becoming the dominant SARS-CoV-2 virus circulating globally. It is important to define reductions in virus neutralizing activity in the serum of convalescent or vaccinated individuals to understand potential loss of protection against infection by Omicron. We previously established that a 50% plaque reduction neutralization antibody titer (PRNT50) ≥25.6 in our live virus assay corresponded to the threshold for 50% protection from infection against wild-type (WT) SARS-CoV-2. Here we show markedly reduced serum antibody titers against the Omicron variant (geometric mean titer (GMT) < 10) compared to WT virus 3–5 weeks after two doses of BNT162b2 (GMT = 218.8) or CoronaVac vaccine (GMT = 32.5). A BNT162b2 booster dose elicited Omicron PRNT50 titers ≥25.6 in 88% of individuals (22 of 25) who previously received 2 doses of BNT162b2 and 80% of individuals (24 of 30) who previously received CoronaVac. However, few (3%) previously infected individuals (1 of 30) or those vaccinated with three doses of CoronaVac (1 of 30) met this threshold. Our findings suggest that countries primarily using CoronaVac vaccines should consider messenger RNA vaccine boosters in response to the spread of Omicron. Studies evaluating the effectiveness of different vaccines against the Omicron variant are urgently needed. Serum neutralizing antibody titers against the SARS-CoV-2 Omicron variant markedly increase after a third dose of BNT162b2 vaccine in individuals who previously received either two doses of the BNT162b2 vaccine or two doses of the CoronaVac vaccine.

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Metadata

Authors
Cheng, S. M. S., Mok, C. K. P., Leung, Y. W. Y., Ng, S. S., Chan, K. C. K., Ko, F. W., Chen, C., Yiu, K., Lam, B. H. S., Lau, E. H. Y., Chan, K. K. P., Luk, L. L. H., Li, J. K. C., Tsang, L. C. H., Poon, L. L. M., Hui, D. S. C., & Peiris, M.
Venue
Nature Medicine
Published
2022-01-20
Volume
28
Issue
3
Pages
486-489
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W4205240144
Cited by
361
References
18
FWCI
40.26
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Neutralizing antibodies against the SARS-CoV-2 Omicron variant BA.1 following homologous and heterologous CoronaVac or BNT162b2 vaccination. https://app.cochat.ai/papers/10.1038/s41591-022-01704-7
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Cheng, S. M. S., Mok, C. K. P., Leung, Y. W. Y., Ng, S. S., Chan, K. C. K., Ko, F. W., Chen, C., Yiu, K., Lam, B. H. S., Lau, E. H. Y., Chan, K. K. P., Luk, L. L. H., Li, J. K. C., Tsang, L. C. H., Poon, L. L. M., Hui, D. S. C., & Peiris, M. (2022). Neutralizing antibodies against the SARS-CoV-2 Omicron variant BA.1 following homologous and heterologous CoronaVac or BNT162b2 vaccination. Nature Medicine. https://doi.org/10.1038/s41591-022-01704-7

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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