Figure 2.

Comparison of beta diversity in bronchoalveolar lavage at the operational taxonomic unit level between uninfected subjects and untreated subjects infected with HIV using UniFrac Principal Coordinate Analysis. (A) The population infected with HIV (red) was significantly different compared with bronchoalveolar lavage from uninfected subjects (black). P = 0.001 using the PERMANOVA test. (B) Subdividing subjects infected with HIV into those with CD4 counts higher than (green) or lower than (blue) 350 cells/mm³ did not affect the results. NMDS = nonmetric multidimensional scaling.