Briefly, this study used sequencing-based neutralization assays to measure titers to influenza viruses with HAs from seasonal H3N2 and H1N1 viruses representative of those circulating in late 2025 and early 2026 against a set of human sera collected in mid to late 2025.

The subdirectory ./non-pipeline_analyses/ has auxillary analyses outside of the main pipeline. See the README files within that subdirectory for details.