Article
Immune imprinting and vaccine interval determine antibody responses to monovalent XBB.1.5 COVID-19 vaccination
17 May 2025
Abstract excerpt
As COVID-19 becomes endemic and vaccines are annually adapted, exposure intervals and immune imprinting become critical considerations for vaccination strategy. Imprinting by the ancestral spike protein affected bivalent Wuhan-Hu-1/BA.4-5 vaccine responses. We assess the persistence of imprinting in antibody responses to the more recent XBB.1.5 monovalent formulation. We quantified live virus-neutralizing...
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