Table 1

Sensitivity study Helicobacter pylori isolates*

ISOLATE NO.
AMOXICILLIN
TETRACYCLINE
METRONIDAZOLE
CLARITHROMYCIN



*Etest Resistance Breakpoints



> 0.5 ug/ml
> 2 ug/ml
> 8 ug/ml
> 1 ug/ml

1
0.016
0.032
0.016
0.016
2
0.016
0.19
0.125
0.016
3
0.016
0.016
0.016
0.016
4
0.016
0.38
0.064
0.016
5
0.016
0.38
0.064
0.016
6
0.016
0.19
0.125
0.016
7
0.016
0.032
0.016
0.016
8
0.016
0.38
0.016
0.016
9
0.016
0.032
0.064
0.016
10
0.016
0.19
0.016
0.016
11
0.016
0.38
0.016
0.016
12
0.016
0.032
0.125
0.016
13
0.016
0.032
0.064
0.016
14
0.016
0.032
0.125
0.016
Strain # CP2124§
0.015
0.015
33
0.015
Strain # CP5535§
0.015
0.125
1.5
257

* all Etest studies done on the Philippine isolates were in the sensitive ranges

§UVa (University of Virginia) Metronidazole resistant isolate

¥UVa Clarithromycin resistant isolate

Destura et al. Annals of Clinical Microbiology and Antimicrobials 2004 3:25   doi:10.1186/1476-0711-3-25

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