2003-2007年西安市感染性腹泻细菌病原学监测结果分析

目的 了解并掌握西安市腹泻病的发生、流行特征、变化趋势及细菌性病原分布特点,为制定预防措施和临床治疗提供参考依据.方法 2003-2007年对西安市腹泻病哨点监测医院中就诊的急性腹泻病患者,用肛拭子采集粪便标本进行增菌后,分别接种4种培养基(碱性蛋白胨水、SS、EMB、中国蓝平板)作霍乱弧菌、沙门菌、志贺菌以及致泻性大肠埃希菌的检验.结果 从1310份粪便标本中,检出各种病原菌90株,检出率6.87%.其中志贺菌占85.56%,还有沙门菌、大肠埃希菌等.结论 2003-2007年检出的阳性菌群中未发现霍乱弧菌,主要以志贺菌为主,初步揭示了西安市细菌性腹泻病原谱.

Surveillance and analysis of bacterial pathogens of infectious diarrhea in the city of Xi'an from 2003 to 2007

Objective The investigation was conducted to understand the occurrence of diarrhea, the epidemic characteristics and tendency, and the distribution of bacterial pathogens for providing reference data for the development of preventive and clinical therapeutic measures. Methods Stool samples of patients with acute diarrhea who were cared in the diarrhea sentinel surveillance hospitals in the city of Xi＇an were collected with anus swabs from 2003 to 2007. After proliferation, the bacteria were inoculated separately in four kinds of culture medium （alkaline protein peptone water, SS, EMB, Chinese blue plate） for testing Vibrio cholera, salmonella, shigella and E. coli. Results Ninety strains were identified from all the samples with a positive rate of 6.87%, of which Shigella bacteria accounted for 85.56%, with salmonella and E. coli also detected. Conclusion The positive bacteria detected from 2003 to 2007 consisted mainly of Shigella bacteria with no Vibrio cholera involved, which primarily revealed the pathogenic spectrum of bacterial diarrhea in the city of Xi＇an.