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We introduce the antibody landscape, a method for the quantitative analysis of antibody-mediated immunity to antigenically variable pathogens, achieved by accounting for antigenic variation among pathogen strains. We generated antibody landscapes to study immune profiles covering 43 years of influenza A/H3N2 virus evolution for 69 individuals monitored for infection over 6 years and for 225 individuals pre- and postvaccination. Upon infection and vaccination, titers increased broadly, including previously encountered viruses far beyond the extent of cross-reactivity observed after a primary infection. We explored implications for vaccination and found that the use of an antigenically advanced virus had the dual benefit of inducing antibodies against both advanced and previous antigenic clusters. These results indicate that preemptive vaccine updates may improve influenza vaccine efficacy in previously exposed individuals.

Original publication

DOI

10.1126/science.1256427

Type

Journal article

Journal

Science

Publication Date

21/11/2014

Volume

346

Pages

996 - 1000

Keywords

Antibodies, Viral, Antigenic Variation, Evolution, Molecular, Humans, Influenza A Virus, H3N2 Subtype, Influenza Vaccines, Influenza, Human, Vaccination