H. pylori infection among people in the same households

We conducted a cohort study on Helicobacter pylori in people who lived in the same households in Vietnam. People visiting our clinic who tested positive for H. pylori, and their family members, were asked to participate in this study. H. pylori eradication therapy was prescribed for H. pylori-positive people. They were asked to return for follow-up after 2-4 months.