目的了解大连市感染性腹泻的致病菌分布情况。方法采集大连市内各哨点医院肠道门诊腹泻患者的粪便标本,按监测方案要求进行检测。结果共采集腹泻标本85份,腹泻病原菌检出率为14.12%,其中志贺菌占41.7%,副溶血弧菌占33.3%。结论志贺菌、副溶血弧菌是引起大连地区细菌性腹泻的主要病原菌。 Objective To understand the distribution of pathogenic bacteria in infectious diarrhea in Dalian. Methods Stool samples from diarrhea patients in the outpatient department of sentinel hospitals in Dalian were collected and tested according to the requirements of monitoring program. Results A total of 85 samples of diarrhea were collected. The detection rate of diarrhea pathogens was 14.12%, of which Shigella accounted for 41.7% and Vibrio parahaemolyticus accounted for 33.3%. Conclusion Shigella, Vibrio parahaemolyticus is the main pathogen causing bacterial diarrhea in Dalian.