High Prevalence of Multiple Strain Colonization of Helicobacter pylori in Korean Patients: DNA Diversity Among Clinical Isolates from the Gastric Corpus Antrum and Duodenum

摘要

Background :The aims of our study were to determine the correlation of the strain variation and degree of homogeneity of infecting Helicobacter pylori (H. pylori) with their disease outcomes, and the relevance of duodenal H. pylori expression of cagA and/or vacA gene to the development of duodenal ulcer in Korean patients.