TABLE 1.
Antimicrobial susceptibility patterns of tested isolates
| Agenta | MIC (μg/ml)b
|
% Susceptible strains | |
|---|---|---|---|
| 50% | 90% | ||
| P. aeruginosa | |||
| CF, nonmucoid (n = 50) | |||
| CAZ | >32 | >32 | 34 |
| CIP | 2 | 8 | 78 |
| IMP | >16 | >16 | 42 |
| TOB | 8 | 256 | 60 |
| ZOS | 128 | >128 | 38 |
| CF, mucoid (n = 50) | |||
| CAZ | >32 | >32 | 34 |
| CIP | 2 | 4 | 70 |
| IMP | 8 | >16 | 52 |
| TOB | 4 | 64 | 76 |
| ZOS | 128 | >128 | 36 |
| Non-CF (n = 50) | |||
| CAZ | 8 | >32 | 66 |
| CIP | 0.5 | 4 | 78 |
| IMP | 4 | >16 | 62 |
| TOB | 1 | 64 | 80 |
| ZOS | 32 | >128 | 68 |
| B. cepacia complex (n = 50) | |||
| CHL | >32 | >32 | 10 |
| DOX | >32 | >32 | 20 |
| MER | 8 | >16 | 58 |
| TMP-SMZ | 16 | 16 | 14 |
| S. maltophilia (n = 50) | |||
| DOX | 2 | 8 | 98 |
| TIM | 16 | >128 | 66 |
| TMP-SMZ | 8 | >16 | 24 |
| A. xylosoxidans (n = 50) | |||
| CAZ | 32 | >32 | 34 |
| CHL | 32 | >32 | 26 |
| CIP | >8 | >8 | 2 |
| TIM | >128 | >128 | 36 |
| TOB | >256 | >256 | 2 |
a
Abbreviations used: CAZ, ceftazidime; CIP, ciprofloxacin; IMP, imipenem; TOB, tobramycin; ZOS, piperacillin-tazobactam; CHL, chloramphenicol; DOX, doxycycline; MER, meropenem; TMP-SMZ, trimethoprim-sulfamethoxazole; TIM, ticarcillin-clavulanate.
b
50% and 90%, MICs at which 50 and 90% of isolates are inhibited, respectively.