Fig. 1: Lineage 3 S. sonnei harbours fewer genes encoding for immunogenic components.

A mid-point rooted maximum likelihood phylogenetic tree with virulence associated genes identified using the virulence factor database (VFDB) plotted alongside and visualised in Phandango. Coloured squares indicate the presence of a gene, and blank squares indicate its absence. Bolded genes represent lineage-dependent differences. Bolded lineages refer to the four main lineages used for experiments. T3SS = Type Three Secretion System. Source data are provided as a Source Data file.