Your browser doesn't support javascript.
loading
Neutralization of Omicron sublineages and Deltacron SARS-CoV-2 by 3 doses of BNT162b2 vaccine or BA.1 infection
Chaitanya Kurhade; jing Zou; Hongjie Xia; Mingru Liu; Qi Yang; Mark Cutler; David Cooper; Alexander Muik; Ugur Sahin; Kathrin U. Jansen; Ping Ren; Xuping Xie; Kena A. Swanson; Pei-Yong Shi.
Affiliation
  • Chaitanya Kurhade; University of Texas Medical Branch
  • jing Zou; University of Texas Medical Branch
  • Hongjie Xia; University of Texas Medical Branch
  • Mingru Liu; University of Texas Medical Branch
  • Qi Yang; Pfizer Vaccines Research & Development
  • Mark Cutler; Pfizer Vaccines Research & Development
  • David Cooper; Pfizer Vaccines Research & Development
  • Alexander Muik; BioNTech SE
  • Ugur Sahin; BioNTech
  • Kathrin U. Jansen; Pfizer Vaccines Research & Development
  • Ping Ren; University of Texas Medical Branch
  • Xuping Xie; University of Texas Medical Branch
  • Kena A. Swanson; Pfizer Vaccines Research & Development
  • Pei-Yong Shi; University of Texas Medical Branch
Preprint de En | PREPRINT-BIORXIV | ID: ppbiorxiv-494889
ABSTRACT
Distinct SARS-CoV-2 Omicron sublineages have evolved showing increased fitness and immune evasion than the original Omicron variant BA.1. Here we report the neutralization activity of sera from BNT162b2 vaccinated individuals or unimmunized Omicron BA.1-infected individuals against Omicron sublineages and "Deltacron" variant (XD). BNT162b2 post-dose 3 immune sera neutralized USA-WA1/2020, Omicron BA.1-, BA.2-, BA.2.12.1-, BA.3-, BA.4/5-, and XD-spike SARS-CoV-2s with geometric mean titers (GMTs) of 1335, 393, 298, 315, 216, 103, and 301, respectively; thus, BA.4/5 SARS-CoV-2 spike variant showed the highest propensity to evade vaccine neutralization compared to the original Omicron variants BA.1. BA.1-convalescent sera neutralized USA-WA1/2020, BA.1-, BA.2-, BA.2.12.1-, BA.3-, BA.4/5-, and Deltacron-spike SARS-CoV-2s with GMTs of 15, 430, 110, 109, 102, 25, and 284, respectively. The low neutralization titers of vaccinated sera or convalescent sera from BA. 1 infected individuals against the emerging and rapidly spreading Omicron BA.4/5 variants provide important results for consideration in the selection of an updated vaccine in the current Omicron wave.
Licence
cc_by_nc_nd
Texte intégral: 1 Collection: 09-preprints Base de données: PREPRINT-BIORXIV Langue: En Année: 2022 Type de document: Preprint
Texte intégral: 1 Collection: 09-preprints Base de données: PREPRINT-BIORXIV Langue: En Année: 2022 Type de document: Preprint