西南战区感染性腹泻病原监测及流行病学分析

目的了解西南战区部队驻地感染性腹泻病原分布特点,探讨其腹泻病原流行病学特征,为腹泻病的防控提供科学依据。方法按国家"十二五"重大专项传染病监测技术平台《腹泻症候群监测方案》采集部队驻地腹泻病人新鲜粪便标本检测致泻病原。结果从379份腹泻粪便标本中检出21种腹泻病原体191株,检出率为50.40%。病原体顺位依次是变形杆菌、弗劳地枸橼酸杆菌、气单胞菌、肺炎克雷伯菌、沙门菌、EIEC、志贺菌和寄生虫、小肠结肠炎耶尔森菌及其它病原菌。腹泻发病人数15~59岁年龄段最多,其次是5岁以下儿童和60岁以上的人群,6~8月份是发病高峰期。结论引起西南战区部队驻地腹泻的病原菌种类多,有年龄、季节分布的特点。监测中建立的病原谱,对西南战区感染性腹泻病原监测和流行病学调查及制定防控措施提供重要参考。

Moitoring of pathgens and epidemiological features of infective diarrhea in southwest military garrison

Objective To understand the distribution of pathogens of infective diarrhea in army soldiers of southwest military garrison, to analyze the prevent features of diarrhea pathogens and to offer scientific basis for formulating diarrhea-control measures. Methods Fresh stool samples were collected from diarrhea cases in locations of army garrison and pathogens leading to diarrhea were detected based upon the 〈monitoring scheme of diarrhea syndrome〉, the platform of national special program for monitoring infectious diseases.Results A total of 191 strains belonging to 21 diarrhea pathogens were detected from 379 diarrhea samples with positive rate of 50.40%. The descending order of pathogens were Proteus vulgaris, Citrobacter freundii, Aeromonas, Klebsiella pneumoniae, enteroinvasive E.coli, Salmonella, Shlgella, parasites, Yersinia enteroeolitiea and other pathogens. Most of the eases were in the age groups of 15-59 years, followed by infants under five years old and the elderly above 60 years old. The infection peaks were in the months of from June to August. Conclusion A variety of pathogenic species were responsible for infective diarrhea in soldiers of southwest military garrison and the diarrhea occurred to certain age groups and exhibited seasonal characteristics. The list of pathogens established during monitoring is of important reference value for eontrolling monitoring pathogens and epidemiological survey and making control measures.