Immunogenicity of BA.5 Bivalent mRNA Vaccine Boosters
NEW ENGLAND JOURNAL OF MEDICINE(2023)
摘要
Waning immunity following mRNA vaccination and the emergence of SARS-CoV-2 variants has led to reduced mRNA vaccine efficacy against both symptomatic infection and severe disease. Bivalent mRNA boosters expressing the Omicron BA.5 and ancestral WA1/2020 Spike proteins have been developed and approved, because BA.5 is currently the dominant SARS-CoV-2 variant and substantially evades neutralizing antibodies (NAbs). Our data show that BA.5 NAb titers were comparable following monovalent and bivalent mRNA boosters.
### Competing Interest Statement
The authors have declared no competing interest.
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