Fig. 2: Maximum clade credibility (MCC) tree and distributions of serotype, sequence type (ST), and disease type amongst CC4821 isolates.

MCC tree of CC4821 population based on BEAST analysis. The tips of the tree were colored according to the location of which isolates were sampled. The time scale was shown below the tree. The four colored boxes in the MCC tree represented the four lineages of CC4821, sub-lineages A, B, C, and D. The distributions of serotype, sequence type (ST), and disease types were plotted against the core genome phylogeny.