Figure 1.
Phylogeny of global influenza A (H1) swine sequence data and the viral sequence of the case in this report, United Kingdom, November 2023
UK: United Kingdom.
The phylogeny is labelled by the three major first order H1 lineages. Tip points are coloured by the region in which they were collected. Sequence data were collated from GISAID and NCBI virus, aligned with MAFFT v7.487 and trimmed manually in Aliview. Phylogeny was inferred using the maximum likelihood approach in IQ-Tree v2.1.4 with ModelFinder and 1,000 ultrafast bootstraps. Phylogeny was visualised using R version 4.1.1 with the libraries ggplot2, ggtree, ape and tidytree.
