Fig. 2

Bacterial composition of baseline samples for all subjects arranged by dominant taxon. Streptococcus was the most prominent taxon (n = 80) followed by Prevotella (N = 16) and Neisseria (n = 15). Staphylococcus (n = 4) and Haemophilus (n = 3) are shown as representative of CF pathogens. Other is a composite category created by summing all other taxa and was dominant for the 80 samples not included in the selected genera (includes 4 samples each dominated by Rothia and Porphyromonas). Few samples contain high relative abundance of PA (max RA < 40%). Dominant taxa abbreviations: OTH = Other; STR = Streptococcus; PRV = Prevotella; NEI = Neisseria; STA = Staphylococcus; H = Haemophilus.