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Neutralization of Omicron BA.1, BA.2, and BA.3 SARS-CoV-2 by 3 doses of BNT162b2 vaccine
Chaitanya Kurhade; jing Zou; Hongjing Xia; Hui Cai; Qi Yang; Mark W Cutler; David Cooper; Alexander Muik; Kathrin Jansen; Xuping Xie; Kena Swanson; Pei-Yong Shi.
Afiliação
  • Chaitanya Kurhade; University of Texas Medical Branch
  • jing Zou; University of Texas Medical Branch
  • Hongjing Xia; University of Texas Medical Branch
  • Hui Cai; Pfizer Vaccines Research & Development
  • Qi Yang; Pfizer Vaccines Research & Development
  • Mark W Cutler; Pfizer Vaccines Research & Development
  • David Cooper; Pfizer Vaccines Research & Development
  • Alexander Muik; BioNTech SE
  • Kathrin Jansen; Pfizer Vaccines Research & Development
  • Xuping Xie; University of Texas Medical Branch
  • Kena Swanson; Pfizer Vaccines Research & Development
  • Pei-Yong Shi; University of Texas Medical Branch
Preprint em Inglês | bioRxiv | ID: ppbiorxiv-485633
ABSTRACT
The newly emerged Omicron SARS-CoV-2 has 3 distinct sublineages BA.1, BA.2, and BA.3. BA.1 accounts for the initial surge and is being replaced by BA.2, whereas BA.3 is at a low prevalence at this time. Here we report the neutralization of BNT162b2-vaccinated sera (collected at 1 month after dose 3) against the three Omicron sublineages. To facilitate the neutralization testing, we engineered the complete BA.1, BA.2, or BA.3 spike into an mNeonGreen USA-WA1/2020 SRAS-CoV-2. All BNT162b2-vaccinated sera neutralized USA-WA1/2020, BA.1-, BA.2-, and BA.3-spike SARS-CoV-2s with titers of >20; the neutralization geometric mean titers (GMTs) against the four viruses were 1211, 336, 300, and 190, respectively. Thus, the BA.1-, BA.2-, and BA.3-spike SARS-CoV-2s were 3.6-, 4.0-, and 6.4-fold less efficiently neutralized than the USA-WA1/2020, respectively. Our data have implications in vaccine strategy and understanding the biology of Omicron sublineages.
Licença
cc_by_nc_nd
Texto completo: Disponível Coleções: Preprints Base de dados: bioRxiv Tipo de estudo: Estudo observacional Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: bioRxiv Tipo de estudo: Estudo observacional Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
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