TABLE 2.
MICs of compounds against strains expressing different levels of mcr-1
| Compounds | ATCC 25922 | MIC (μg/mL) against different E. colia |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| K12 | QH0001 | QH0002 | QH0003 | QH0004 | QH0005 | QH0006 | QH0007 | ||
| Colistin | 0.25 | 0.125 | 0.25 | 0.5 | 1 | 4 | 8 | 8 | 8 |
| Polymyxin B | 0.5 | 0.25 | 0.25 | 0.5 | 1 | 2 | 4 | 8 | 4 |
| Aztreonam | 0.06 | 0.125 | 0.125 | 0.25 | 0.125 | 0.125 | 0.25 | 0.125 | 0.125 |
| Ceftazidime | 0.25 | 0.25 | 0.25 | 0.5 | 0.25 | 0.5 | 0.5 | 0.25 | 0.25 |
| Gentamycin | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.5 | 0.25 | 0.25 | 0.5 |
| Rifampin | 8 | 8 | 16 | 8 | 8 | 8 | 8 | 8 | 8 |
a
MICs were determined in CAMH broth by microdilution methods according to CLSI guidelines.