SARS-CoV-2 Variant Exposures Elicit Antibody Responses With Differential Cross-Neutralization of Established and Emerging Strains Including Delta and Omicron.
J Infect Dis
; 225(11): 1909-1914, 2022 06 01.
Article
em En
| MEDLINE
| ID: mdl-34979030
ABSTRACT
The wide spectrum of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants with phenotypes impacting transmission and antibody sensitivity necessitates investigation of immune responses to different spike protein versions. Here, we compare neutralization of variants of concern, including B.1.617.2 (delta) and B.1.1.529 (omicron), in sera from individuals exposed to variant infection, vaccination, or both. We demonstrate that neutralizing antibody responses are strongest against variants sharing certain spike mutations with the immunizing exposure, and exposure to multiple spike variants increases breadth of variant cross-neutralization. These findings contribute to understanding relationships between exposures and antibody responses and may inform booster vaccination strategies.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
SARS-CoV-2
/
COVID-19
Limite:
Humans
Idioma:
En
Revista:
J Infect Dis
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Estados Unidos