Figure 1.

Estimated densities (CFU/mL) of Achromobacter species in longitudinal samples of patient sputum. Total density of Achromobacter (A. denitrificans and A. xylosoxidans; filled circles) remained relatively constant over time, whereas the subpopulation of A. denitrificans bacteria (open circles) declined by orders of magnitude following phage treatment. Lines are results of regression analyses, where linear regressions are depicted for total Achromobacter and A. denitrificans bacteria CFU data, respectively.