FIG 5.

Absolute pathogen densities are variable and often increased under antibiotic exposures. Each dot corresponds to the fold change difference of an individual replicate of species-specific final time point absolute density under defined antibiotic treatments, compared to the mean value of the no-antibiotic control (data redrawn from Fig. 3). Mer, meropenem; cip, ciprofloxacin; tob, tobramycin. Asterisks denote significantly higher final densities in the presence of antibiotic compared to antibiotic-free controls (competitive release; one-tailed Wilcoxon test; *, P < 0.05; **, P < 0.01).