Near real-time data on the human neutralizing antibody landscape to influenza virus as of the summer of 2026 to inform vaccine-strain selection

Study led by Caroline Kikawa, Andrew Butler, John Huddleston, and Jesse Bloom.

See the summary of key results for an overview of the results.

The numerical data and computer code are at https://github.com/jbloomlab/flu-seqneut-2026

Documentation of results rendered as of Thu Sep 10 16:42:39 2026

Contents

Titers for all sera

Per-serum neutralization titers

human

Per-plate counts and curve fits

human

Plate-to-plate correlations of titers (only for plates that share sera with other plates)

human

Summary of data dropped during quality control

Report summarizing QC drops

Library quality-control

Composition of the library pools

Balance of the library re-pools

Single virus per well infections

Interactive charts of human titers, tree colored by subclade

H1N1 recent strains

H3N2 recent strains

Interactive charts of human titers, vaccine strains

H1N1

H3N2

Interactive charts of titers before and after vaccination in the VIDRL cohorts

H1N1 recent strains

H1N1 vaccine strains

H3N2 recent strains

H3N2 vaccine strains

Interactive charts of human titers with sera split by relative titer

H3N2 recent strains, tree colored by subclade

H1N1 recent strains, tree colored by subclade

Protein structure visualizations

Reports