Fig. 3.

Longitudinal stability of the skin microbiome. A higher number corresponds to greater shared community membership or structure over time. Sites with an asterisk below the site code retained significant community membership over time; those with a bullet retained significant community structure over time, as compared to interpersonal variation at the same site (P ≤ 0.05). Parentheses around asterisks or bullets indicate that significance was achieved for that site when the outlier (volunteer 2) was removed from the analysis. See fig. S1 for key to site codes.