 The prevalence of helicobacter pylori infections in Vietnamese children is high, with over 80% of children testing positive for the bacteria. Additionally, nearly one-fifth of these children had peptic ulcers, which increases with age. Furthermore, CAGA plus strains of H. pylori are more common in children with ulcers than in those without them. This suggests that early detection and treatment of H. pylori infections may be important in reducing the risk of peptic ulcers and gastric cancer later on. This article was authored by two Khem Nguyen, Nakh Le Chow Tang, Chow Kim Nakh Lu and others.