１９８８～１９９８ 年７ ～８ 月的旅游季节，我们对来自全国１８ 个省、市、自治区２３７ 例旅游腹泻患者进行病原学及感染因素调查，共检出致泻菌１４ 种１１８ 株，检出率为４９－７９％ ，以致病性弧菌、致泻性大肠杆菌及变形杆菌为主。分别占５２－５４％ （６２／１１８） 、１６－９５％ （２０／１１８） 和１３－５６％ （１６／１１８） 。感染因素主要有食用不洁饮食，海产品加热不透及游泳时不注意，被污染的海水呛入胃内感染而发生腹泻。建议加强旅游环境治理和提高自我保护意识。 During the tourist season from July 1988 to July 1998, 237 etiological and infectious factors were investigated in 237 cases of tourism diarrhea in 18 provinces, cities and autonomous regions of China. A total of 14 118 species of infectious diarrhea bacteria were detected, the detection rate 49-79%, so that pathogenic Vibrio, diarrheal Escherichia coli and Proteus dominated. Accounting for 52-54% (62/118), 16-95% (20/118) and 13-56% (16/118), respectively. Infections are mainly due to unclean eating, seafood is not heated and swimming is not aware of, polluted sea water choke into the stomach infection and diarrhea. Suggestions to strengthen tourism environment governance and raise awareness of self-protection.