Figure 1

Population snapshot generated by eBURST (A) and phylogenetic analysis of S. agalactiae strains (B). A A total of 1148 STs are displayed as single eBURST diagrams, and each ST is represented as a dot. The dots positioned centrally in the cluster are primary founders (blue) or subgroup founders (yellow). Red circles indicate the STs detected in this study and are marked by yellow arrows. B The internal color ranges refer to the different STs of the strains; the inner ring indicates the biological source, while the external ring indicates the capsular genotype.