Table 2.
Single and multidrug resistance of amoxicillin, metronidazole, and clarithromycin. In total, 49 of 51 antibiograms were analyzed for resistance to amoxicillin, metronidazole, and clarithromycin. The very frequent resistance to amoxicillin and metronidazole was particularly striking. In addition, a multidrug resistance rate of 41% (n = 20/49) with a proportion of 45% (n = 9/20) of amoxicillin-resistant HP isolates is a cause for major concern.
| Tested Antibiotics | Frequency | Percentage |
|---|---|---|
| Total Amoxicillin | 10/49 | 20% |
| Amoxicillin | 1 | |
| Amoxicillin + Clarithromycin | 3 | |
| Amoxicillin + Metronidazole | 3 | |
| Amoxicillin + Clarithromycin + Metronidazole | 3 | |
| Total Clarithromycin | 22/49 | 45% |
| Clarithromycin | 5 | |
| Clarithromycin + Metronidazole | 11 | |
| Clarithromycin + Amoxicillin | 3 | |
| Clarithromycin + Amoxicillin + Metronidazole | 3 | |
| Total Metronidazole | 29/49 | 59% |
| Metronidazole | 12 | |
| Metronidazole + Clarithromycin | 11 | |
| Metronidazole + Amoxicillin | 3 | |
| Metronidazole + Amoxicillin + Clarithromycin | 3 |