Table 1.
Antimicrobial agent | Non-MDR P. mirabilis (n = 63) |
MDR P. mirabilis (n = 36) |
||||
---|---|---|---|---|---|---|
MIC (μg/ml)a |
No. (%) susceptible | MIC (μg/ml) |
No. (%) susceptible | |||
50% | 90% | 50% | 90% | |||
Amikacin | 1 | 2 | 63 (100) | 4 | 4 | 36 (100) |
Amoxicillin-clavulanic acid | <0.38 | 0.5 | 63 (100) | 4 | 8 | 36 (100) |
Ampicillin | 0.5 | >256 | 32 (50.8) | >256 | >256 | 0 (0) |
Aztreonam | <0.016 | <0.016 | 63 (100) | 0.25 | 1 | 36 (100) |
Cefepime | <0.016 | 0.064 | 63 (100) | 4 | 32 | 25 (69.4) |
Cefotaxime | <0.016 | <0.016 | 63 (100) | 8 | 32 | 0 (0) |
Cefoxitin | 1 | 2 | 63 (100) | 4 | 8 | 36 (100) |
Ceftazidime | <0.016 | <0.016 | 63 (100) | 2 | 4 | 33 (91.7) |
Ceftriaxone | <0.016 | <0.016 | 63 (100) | 8 | 16 | 0 (0) |
Ciprofloxacin | 0.016 | >32 | 50 (79.4) | >32 | >32 | 3 (8.3) |
Gentamicin | 0.5 | 2 | 51 (80.9) | >32 | >32 | 0 (0) |
Levofloxacin | 0.032 | >32 | 50 (79.4) | >32 | >32 | 3 (8.3) |
Meropenem | 0.023 | 0.03 | 63 (100) | 0.03 | 0.12 | 36 (100) |
Piperacillin-tazobactam | 0.125 | 0.75 | 63 (100) | 0.5 | 1 | 36 (100) |
Trimethoprim-sulfamethoxazole | 0.125 | >4 | 42 (66.7) | 0.125 | >4 | 25 (69.4) |
MICs that inhibit 50% and 90% of isolates, respectively.
MDR, multidrug resistant.