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Serum Neutralizing Activity of mRNA-1273 Against the SARS-CoV-2 B.1.1.529 (Omicron) Variant: A Preliminary Report
Diana Lee; Laura E. Avena; Daniela Montes Berrueta; Matthew Koch; Angela Choi; Judy Oestreicher; William Hillebrand; HongHong Zhou; Rolando Pajon; Andrea Carfi; Darin K. Edwards; Kai Wu.
Afiliação
  • Diana Lee; Moderna, Inc.
  • Laura E. Avena; Moderna, Inc.
  • Daniela Montes Berrueta; Moderna, Inc.
  • Matthew Koch; Moderna, Inc.
  • Angela Choi; Moderna, Inc.
  • Judy Oestreicher; Moderna, Inc.
  • William Hillebrand; Moderna, Inc.
  • HongHong Zhou; Moderna, Inc.
  • Rolando Pajon; Moderna, Inc.
  • Andrea Carfi; Moderna, Inc.
  • Darin K. Edwards; Moderna, Inc.
  • Kai Wu; Moderna, Inc.
Preprint em En | PREPRINT-MEDRXIV | ID: ppmedrxiv-21268247
ABSTRACT
The emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) B.1.1.529 (Omicron) variant has led to growing concerns of increased transmissibility and escape of both natural and vaccine-induced immunity. In this analysis, sera from adult participants in a phase 2 clinical study (NCT04405076) were tested for neutralizing activity against B.1.1.529 after a 2-dose (100 {micro}g) mRNA-1273 primary vaccination series and after a 50-{micro}g mRNA-1273 booster dose. Results from this preliminary analysis show that 1 month after completing the primary series, mRNA-1273-elicited serum neutralization of B.1.1.529 was below the lower limit of quantification; however, neutralization was observed at 2 weeks after the mRNA-1273 booster dose, although at a reduced level relative to wild-type SARS-CoV-2 (D614G) and lower than that observed against D614G at 1 month after the primary series.
Licença
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Texto completo: 1 Coleções: 09-preprints Base de dados: PREPRINT-MEDRXIV Tipo de estudo: Prognostic_studies Idioma: En Ano de publicação: 2022 Tipo de documento: Preprint
Texto completo: 1 Coleções: 09-preprints Base de dados: PREPRINT-MEDRXIV Tipo de estudo: Prognostic_studies Idioma: En Ano de publicação: 2022 Tipo de documento: Preprint