感染性腹泻病原学监测

THE ETIOLOGY SURVEILLANCE OF INFECTIOUS DIARRHEA

目的了解感染性腹泻肠道致病菌的构成、分布和流行特征,为肠道细菌性传染病控制提供病原学基础资料。方法采用分离培养和生化鉴定方法,对平罗县2011年4-12月,3家哨点医院的门诊腹泻病例的粪便标本进行了监测与分析。结果共采集病人粪便标本98份,分离到病原菌51株,检出率为52.04%。肠致泻性大肠杆菌检出居首位,占72.4%;其次是志贺菌和沙门菌,分别占17.6%和5.0%。肠道致病菌的人群分布主要集中在儿童,以夏秋季为流行高峰。结论平罗县感染性腹泻主要致病菌依次为肠致泻性大肠杆菌、志贺菌和沙门菌等,秋季为流行高峰季节,应适时加强防控措施。

Objective To understand the intestinal pathogens composition, distribution and epidemic characteristics of in- fectious diarrhea, so as to provide basis for control of intestines bacterial infection. Methods The isolated biochemical i- dentification method was used to monitor and to analyze stool specimens of 3 sentinel hospitals outpatient diarrhea cases of Pingluo County in year 2011 from the April to December. Results The patient stool specimens of 98 copies were collect- ed, 51 strains of pathogenic bacteria were isolated and the detection rate was 52. 04%. Intestinal pathogenic Escherichia co- li in the detectic of the first, which accounting for 72. 4% ; followed by Shigella and Salmonella, accounted for 17. 6% and 5 % respectively. Intestinal bacteria population distribution was mainly in children, and the autumn was the epidemic peak season. Conclusion The infectious diarrhea pathogens are intestinal pathogenic Escherichia coli, ShigeUa and Sa＇lmonella subsequently. The autumn is the epidemic peak season and the prevention and control measures should strengthen.