TABLE 2.
Antibiotic susceptibilities of NDM-1-producing bacterial isolates obtained from wastewater samples in Dhaka
| Antibiotic |
E. coli (n = 30) |
Klebsiella pneumoniae (n = 46) |
Acinetobacter spp. (n = 16) |
Enterobacter spp. (n = 9) |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIC50 (mg/liter) | MIC90 (mg/liter) | % resistant | MIC50 (mg/liter) | MIC90 (mg/liter) | % resistant | MIC50 (mg/liter) | MIC90 (mg/liter) | % resistant | MIC50 (mg/liter) | MIC90 (mg/liter) | % resistant | |
| Piperacillin-tazobactam | >256 | >256 | 100 | >256 | >256 | 100 | >256 | >256 | 100 | >256 | >256 | 100 |
| Minocycline | 3 | 32 | 13 | 4 | 48 | 24 | 1.5 | 96 | 12.5 | 4 | 32 | 22 |
| Tigecycline | 0.38 | 1 | 0 | 0.75 | 2.0 | 0 | 0.38 | 2.0 | 0 | 0.75 | 1.5 | 0 |
| Ciprofloxacin | >32 | >32 | 100 | >32 | >32 | 89 | >32 | >32 | 100 | 3 | >32 | 40 |
| Imipenem | >32 | >32 | 96 | >32 | >32 | 100 | >32 | >32 | 100 | >32 | >32 | 100 |
| Colistin | 1.5 | 4 | 7 | 1.5 | 4 | 4 | 1.5 | 4 | 0 | 1.5 | 4 | 0 |
| Cefotaxime | >256 | >256 | 100 | >256 | >256 | 100 | >256 | >256 | 100 | >256 | >256 | 100 |
| Ceftazidime | >256 | >256 | 100 | >256 | >256 | 100 | >256 | >256 | 100 | >256 | >256 | 100 |
| Amikacin | >256 | >256 | 77 | >256 | >256 | 91 | >256 | >256 | 81 | >256 | >256 | 100 |
| Gentamicin | >256 | >256 | 77 | >256 | >256 | 98 | >256 | >256 | 94 | >256 | >256 | 100 |
| Aztreonam | >256 | >256 | 100 | >256 | >256 | 96 | >256 | >256 | 56 | >256 | >256 | 89 |