Fig. 4From: USA300 Staphylococcus aureus persists on multiple body sites following an infectionNumber of SNPs between the most recent common ancestor (MRCA) and strains at each sampling time point: a aggregated for each time point. Sampling time point 2 was approximately 1 year after time point 1. b at time point 1 between the MRCA and each body site. c at time point 2 between the MRCA and each body site (note difference in y-axis scale between B and A/C)Back to article page