Bacterial covariation with Candida in OW samples. (A) Principal coordinates analysis of weighted UniFrac distance between bacterial communities for oropharyngeal wash samples. Group centroids are shown with open triangles. The PicoGreen-corrected abundance of Candida has a significant effect on bacterial community composition (PERMANOVA P = 0.004, F = 3.8). (B) The QPCR-corrected abundance of Streptococcus, Rothia, and Veillonella increased with the abundance of Candida (Spearman correlation, P <0.05 after FDR correction). (C) Ten of the top 20 most abundant Streptococcus OTUs were found to increase with Candida abundance (Spearman correlation, P <0.05 after FDR correction).