Beta diversity measures in HIV versus controls.

<p>HIV samples appear separated from control samples in beta diversity analyses. HIV samples are in red; Control samples are in blue. Panel (a) shows nonmetric multidimensional scaling (NMDS) of all the samples using the Bray-Curtis similarity at the OTU level. Panel (b) shows principal coordinates analysis of all of the samples using the Unifrac metric at the OTU level. Panels (c–f) show principal coordinates analysis using the Unifrac metric, by sample site. Panels: (c) For samples from ileum; (d) For samples from right colon; (e) For samples from left colon; (f) For fecal samples.