TABLE 3.
MICs of β-lactam antibiotics for S. maltophilia KJ and its derived ampD-associated mutants
| Antibiotic | MIC (μg/ml) of antibiotic for strain:
|
|||
|---|---|---|---|---|
| KJ | KJΔDI | KJΔDII | KJΔDIΔDII | |
| Penicillins | ||||
| Piperacillin | 1,024 | 1,024 | 1,024 | 1,024 |
| Carbenicillin | 1,024 | 1,024 | 1,024 | 1,024 |
| Cephalosporins | ||||
| Cefuroxime | 2,048 | 2,048 | 2,048 | 2,048 |
| Cefoxitin | 1,024 | 1,024 | 1,024 | 1,024 |
| Ceftriaxone | 256 | 256 | 256 | 256 |
| Cefepime | 64 | 96 | 64 | 96 |
| Carbapenems | ||||
| Imipenem | >32 | >32 | >32 | >32 |
| Meropenem | >32 | >32 | >32 | >32 |
| Monobactam | ||||
| Aztreonam | >2,048 | >2,048 | >2,048 | >2,048 |