Methods and Results To review the literatures, and summarize the contents from the overview, pathogenicity, virulent genes and possible mechanisms of coccoid conversion in H.pylori.

• 方法与结果回顾文献,从球形幽门螺杆菌的一般概况、致病性、其毒力基因以及可能的球变机制几个方面进行综述。