Figure 2.

Differential pattern of intracellular persistence among the Pseudomonas strains depending on the lung epithelial cell type. The figure shows the log₁₀ CFUs/monolayers of PAO1, PA14, PAET1, PAET2, and PAET4 after 1.5, 3, 4.5, 6 and 21 h incubation with gentamicin 200 µg/mL after 3 h of infection at a MOI = 1. The standard error of the mean from representative triplicate experiments is indicated with the error bars. Significant differences between the CFUs counted per monolayer between time points for each strain and cell line are indicated with asterisks (*p < 0.05; ** p < 0.01; *** p < 0.001; **** p < 0.0001).