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Substantial Neutralization Escape by the SARS-CoV-2 Omicron Variant BQ.1.1
Jessica Miller; Nicole Hachmann; Ai-ris Collier; Ninaad Lasrado; Camille Mazurek; Robert Patio; Olivia Powers; Nehalee Surve; James Theiler; Bette Korber; Dan H. Barouch.
Afiliação
  • Jessica Miller; Beth Israel Deaconess Medical Center
  • Nicole Hachmann; Beth Israel Deaconess Medical Center
  • Ai-ris Collier; Beth Israel Deaconess Medical Center
  • Ninaad Lasrado; Beth Israel Deaconess Medical Center
  • Camille Mazurek; Beth Israel Deaconess Medical Center
  • Robert Patio; Beth Israel Deaconess Medical Center
  • Olivia Powers; Beth Israel Deaconess Medical Center
  • Nehalee Surve; Beth Israel Deaconess Medical Center
  • James Theiler; LANL
  • Bette Korber; LANL
  • Dan H. Barouch; Beth Israel Deaconess Medical Center
Preprint em En | PREPRINT-BIORXIV | ID: ppbiorxiv-514722
ABSTRACT
Omicron BA.5 has been the globally dominant SARS-CoV-2 variant and has demonstrated substantial neutralization escape compared with prior variants. Additional Omicron variants have recently emerged, including BA.4.6, BF.7, BA.2.75.2, and BQ.1.1, all of which have the Spike R346T mutation. In particular, BQ.1.1 has rapidly increased in frequency, and BA.5 has recently declined to less than half of viruses in the United States. Our data demonstrate that BA.2.75.2 and BQ.1.1 escape NAbs induced by infection and vaccination more effectively than BA.5. BQ.1.1 NAb titers were lower than BA.5 NAb titers by a factor of 7 in two cohorts of individuals who received the monovalent or bivalent mRNA vaccine boosters. These findings provide the immunologic context for the rapid increase in BQ.1.1 prevalence in regions where BA.5 is dominant and have implications for both vaccine immunity and natural immunity.
Licença
cc_by_nd
Texto completo: 1 Coleções: 09-preprints Base de dados: PREPRINT-BIORXIV Tipo de estudo: Cohort_studies / Observational_studies / Prognostic_studies Idioma: En Ano de publicação: 2022 Tipo de documento: Preprint
Texto completo: 1 Coleções: 09-preprints Base de dados: PREPRINT-BIORXIV Tipo de estudo: Cohort_studies / Observational_studies / Prognostic_studies Idioma: En Ano de publicação: 2022 Tipo de documento: Preprint