Objective To survey the prevalence of Helicobacter Pylori (HP) infection and its relation to gastroduodenal diseases of pupils in Huining County in the central arid mountain area of Gansu Province.

• 目的调查甘肃中部干旱山区会宁县小学生幽门螺杆菌(Hp)的感染状况及与胃肠道疾病的关系。