Bivalent COVID-19 mRNA booster vaccination (BA.1 or BA.4/BA.5) increases neutralization of matched Omicron variants

Author:

Springer David N.ORCID,Bauer Michael,Medits IrisORCID,Camp Jeremy V.ORCID,Aberle Stephan W.,Burtscher Clemens,Höltl Eva,Weseslindtner Lukas,Stiasny KarinORCID,Aberle Judith H.ORCID

Abstract

AbstractWe report SARS-CoV-2 neutralizing antibody titers in sera of triple-vaccinated individuals who received a booster dose of an original monovalent or a bivalent BA.1- or BA.4/BA.5-adapted vaccine or had a breakthrough infection with Omicron variants BA.1, BA.2 or BA.4/BA.5. A bivalent BA.4/BA.5 booster or Omicron-breakthrough infection induced increased Omicron-neutralization titers compared with the monovalent booster. The XBB.1.5 variant effectively evaded neutralizing-antibody responses elicited by current vaccines and/or infection with previous variants.

Publisher

Springer Science and Business Media LLC

Subject

Pharmacology (medical),Infectious Diseases,Pharmacology,Immunology

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