Table 2 MICs of H. pylori isolates before, and after in vitro induction with clarithromycin
No | Isolate | MIC in µg/mL (passage number) | |||
|---|---|---|---|---|---|
S isolates before induction | B isolates at breakpoint | R isolates after breakpointa | R isolates after resistance inductionb | ||
1 | UM171 | 0.064 (P0) | 0.125 (P4) | 1 (P5) | > 64 (P10) |
2 | UM626A1 | 0.064 (P0) | 0.125 (P5) | 2 (P6) | > 64 (P11) |
3 | UM650B | < 0.016 (P0) | 0.125 (P7) | 1 (P8) | > 64 (P12) |
4 | UM678A | 0.064 (P0) | 0.125 (P5) | 1 (P6) | > 64 (P10) |