TABLE 5.
Strain | Infecting dose (no. of CFU [106] in 5 μl) | Median final viable count (CFU/ml) (lower quartile-upper quartile) at 7 days |
---|---|---|
PA103 | 4.2 | 6.1 × 106 (5.2 × 106-7.0 × 106) |
retS mutant | 2.9 | 1.3 × 107 (9.2 × 106-1.4 × 107)a |
exsA mutant | 3.0 | 5.8 × 106 (5.4 × 106-6.3 × 106) |
A more-than-twofold increase in colonization by retS over PA103 or the exsA mutant (P < 0.05 [Mann-Whitney test] for each case).