Fig. 3

Macrolide resistant and sensitive SS14 sub-lineages evolved independently prior to 2006 and expanded equally regardless of resistance genotype. This figure shows sample collection dates grouped by sub-lineage, with size of coloured circle proportional to number of sequences, and showing predicted time to most recent common ancestor (TMRCA; black circle) with 95% highest posterior density (HPD; red bars), and proportion of genotypically macrolide resistant (black), sensitive (white) and uncertain (grey) samples