Table 2.
AST results of 101 clinical H. pylori isolates.
| AST results | No. of strains | Resistance rate (%) |
|---|---|---|
| MTZ | 96 | 95.0 |
| CLA | 89 | 88.1 |
| LVX | 71 | 70.3 |
| AMX | 4 | 3.9 |
| TET | 1 | 1.0 |
| FZD | 2 | 1.9 |
| Mono resistance | 7 | 6.9 |
| MTZ | 5 | 4.9 |
| CLA | 2 | 1.9 |
| Dual resistance | 27 | 26.7 |
| MTZ + CLA | 21 | 20.8 |
| MTZ + LVX | 5 | 4.9 |
| LVX + CLA | 1 | 1.0 |
| Triple resistance | 59 | 58.4 |
| MTZ + CLA + LVX | 59 | 58.4 |
| Quadruple resistance | 5 | 4.9 |
| MTZ + CLA+ LVX + AMX | 4 | 3.9 |
| MTZ + CLA + LVX+ FZD | 1 | 1.0 |
| Quinary resistance | 1 | 1.0 |
| MTZ + CLA + LVX + TET + FZD | 1 | 1.0 |
| Pan resistance | 0 | 0 |
AMX, amoxicillin; TET, tetracycline; FZD, furazolidone; LVX, levofloxacin; CLA, clarithromycin; MTZ, metronidazole.