Figure 1. Antibiotic minimum inhibitory concentration (MIC) distribution for forty-three clinical strains of H. pylori using the E test method. MIC breakpoints for azithromycin (AZM >1), erythromycin (ERY >0.5), levofloxacin (LEV >1), metronidazole (MTZ >8), tetracycline >1, and amoxicillin >0.5 μg/mL (refs. 17-19).
