Resistance of <i>Helicobacter pylori</i> to quinolones and clarithromycin assessed by genetic testing in Japan

Abstract

A high incidence of quinolone-resistance was found in clarithromycin-resistant strains of H. pylori, particularly in patients with previous eradication failure. Our results suggest that testing for susceptibility of H. pylori to quinolones is useful for determining the optimal rescue eradication regimen.