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幽门螺杆菌（HelicobacterPylori，Hp）是世界上最常见的病原体之一。根据Hp菌株毒素相关蛋白（casA）的有无将其分为两型：I型高毒力株．含ca．gA基因；I低毒力株．不含cagA基因”。本文通过检测cagA－HP抗体．间接测定具有。agA基因的HP，探讨其与慢性胃炎、消化性溃疡的关系
Helicobacter pylori (Hp) is one of the most common pathogens in the world. According to the presence or absence of the Hp strain toxin-related protein (casA), it is divided into two types: type I highly virulent strains. Contains ca. gA gene; I low virulent strain. Free of cagA gene. "In this paper, by detecting cagA-HP antibody.IgA gene with indirect determination of HP, to explore its relationship with chronic gastritis, peptic ulcer