FIG 5.

Colonization dynamics of two predominant strains of S. epidermidis on preterm infant skin. (A) Skin sites predominantly colonized early by a strain as determined by StrainEst. To be considered predominant, the strain had to have >50% relative abundance and be >10% more abundant than the other strains at the first time point they appeared. (B) Time intervals where the relative abundance of a strain increased as determined by StrainEst. Bars represent 95% confidence intervals. Test of proportions (**, P < 0.01).