Table 3.
Comparative antibiotic resistance patterns in blaNDM-1-positive and blaNDM-1-negative Acinetobacter isolates
| Antibiotics | Disk content | Total Acinetobacter isolates (64) | blaNDM-1-positive Acinetobacter isolates (42) | blaNDM-1-negative Acinetobacter isolates (22) |
|---|---|---|---|---|
| µg | No (%) | No (%) | No (%) | |
| Cefotaxime | 30 | 64 (100) | 42 (100) | 22 (100) |
| Ceftazidime | 30 | 64 (100) | 42 (100) | 22 (100) |
| Ceftriaxone | 30 | 64 (100) | 42 (100) | 22 (100) |
| Cefepime | 30 | 64 (100) | 42 (100) | 22 (100) |
| Trimethoprim/sulfamethoxazole | 1.25/23.75 | 64 (100) | 42 (100) | 22 (100) |
| Piperacillin/tazobactam | 100/10 | 62 (96.8) | 42 (100) | 20 (90.9) |
| Tetracycline | 30 | 61 (95.3) | 42 (100) | 19 (86.3) |
| Aztreonam | 30 | 60 (93.7) | 42 (100) | 18 (81.8) |
| Ciprofloxacin | 5 | 58 (90.6) | 42 (100) | 16 (72.7) |
| Amikacin | 30 | 58 (90.6) | 42 (100) | 16 (72.7) |
| Imipenem | 10 | 54 (84.4) | 42 (100) | 12 (54.5) |
| Meropenem | 10 | 54 (84.4) | 42 (100) | 12 (54.5) |
| Colistin | 10 | 6 (9.3) | 6 (14.3) | 0 |
Abbreviation: blaNDM, New Delhi metallo-β-lactamase.