Mapping SARS-CoV-2 antigenic relationships and serological responses.
Science
; 382(6666): eadj0070, 2023 10 06.
Article
en En
| MEDLINE
| ID: mdl-37797027
ABSTRACT
During the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, multiple variants escaping preexisting immunity emerged, causing reinfections of previously exposed individuals. Here, we used antigenic cartography to analyze patterns of cross-reactivity among 21 variants and 15 groups of human sera obtained after primary infection with 10 different variants or after messenger RNA (mRNA)-1273 or mRNA-1273.351 vaccination. We found antigenic differences among pre-Omicron variants caused by substitutions at spike-protein positions 417, 452, 484, and 501. Quantifying changes in response breadth over time and with additional vaccine doses, our results show the largest increase between 4 weeks and >3 months after a second dose. We found changes in immunodominance of different spike regions, depending on the variant an individual was first exposed to, with implications for variant risk assessment and vaccine-strain selection.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Glicoproteína de la Espiga del Coronavirus
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SARS-CoV-2
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COVID-19
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Vacunas de ARNm
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Antígenos Virales
Tipo de estudio:
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Science
Año:
2023
Tipo del documento:
Article
País de afiliación:
Reino Unido