Rare incidence of interspousal transmission of Helicobacter pylori in asymptomatic individuals in Japan

PCR-restriction fragment length polymorphism electrophoretic patterns of am plified ureB and ureC of Helicobacter pylori were compared between spouses after digestion with restriction endonucleases. Twenty of 21 couples, both members of which were positive for H. pylori, showed ureB and ureC patterns that differed between spouses. We concluded that in Japan, interspousal tr ansmission of H. pylori occurs rarely.