Fig. 3.
Sequential assessment of Pseudomonas aeruginosa concentration in tracheal secretions. Data are reported as mean ± SD. Bonferroni-corrected P values were obtained by multiplying each P value by the number of post hoc multiple comparisons. After bacterial challenge, the concentration of P. aeruginosa in tracheal secretion progressively increased (P < 0.001), reaching 6.39 ± 0.34 log colony-forming unit (cfu)/ml at the end of the study.