Article Abstract

Atypical antibody responses to influenza

Authors: Dalton Hermans, Richard J. Webby, Sook-San Wong

Abstract

Influenza viruses undergo rapid antigenic evolution and reassortment, resulting in annual epidemics and the occasional pandemics. Exposure to in uenza virus hemagglutinin (HA) and neuraminidase (NA) antigen, either through vaccination or infection, induces an antibody response able to recognize only the homologous antigenic subtype. However, atypical antibody responses recognizing non-homologous in uenza subtypes have been reported during infection and vaccination. Here, we review the incidence of these phenomena in published literature and discuss the potential mechanisms underlying them.

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