幽门螺杆菌 (Ｈｅｌｉｃｏｂａｃｔｅｒｐｙｌｏｒｉ ,Ｈｐ)在五大洲均有发现 ,发达国家人群带菌率 50 %左右 ,而发展中国家的儿童带菌率高达 80 % [1] 。Ｈｐ的持续感染是慢性胃炎和消化性溃疡的主要病因的观点已成定论 ,志愿者口服Ｈｐ菌液可出现相应症状。患者若经过适当治 Helicobacter pylori (Hp) is found on five continents, with around 50% of carriers in developed countries, compared to 80% of children in developing countries [1]. Hp persistent infection is the main cause of chronic gastritis and peptic ulcer view has become a conclusion, volunteers oral H. pylori can present the corresponding symptoms. If the patient is properly treated