【摘要】 目的探讨枸橼酸杆菌所致婴幼儿腹泻的流行因素。方法取腹泻患儿新鲜粪便作细菌培养,筛查枸橼酸杆菌肠炎病例,进行整理分析。结果从腹泻粪便培养出480例阳性病例中,计有5种病原菌,其中112例为弗劳地枸橼酸杆菌,占22.3%,居第2位。年龄均在2岁以下,其中<1岁的占87.5%,人工及混合喂养儿高于母乳喂养儿的发病率,夏秋季为发病高峰。结论枸橼酸杆菌是人体肠道正常寄居菌之一,当机体抵抗力低下时,可引起婴幼儿腹泻,成为条件致病菌。其发病的流行因素与年龄、免疫力、季节、喂养方法、抗生素的应用等诸多因素有关。当腹泻粪便培养有该菌呈纯培养或优势生长时,可确定为条件致病菌引起的肠炎。更多还原

【Abstract】 Objective To investigate the epidemic factors of infantile enteritis caused by citrobacter. [Methods] Newly collected feces of the children patients were cultivated to screen citrobacter enteritis cases. [Results] 5 types of pathogens were detected from the 480 positive cases, among which 112 cases were citrobacter (22.3%) ranking the second place. All the patients were under 2 years old, those under 1 year old occupied 87.5%. The morbidity of children feed in artificial way and in mixed way is higher than that by breast feeding. [Conclusion]Citrobacter is one of the normal bacterial parasites in human intestinal tract. When human immune system declines, it may become the opportunistic pathogen causing infantile diarrhea. The epidemic factors are related with various agents including age, immunity, season, feeding methods and the application of antibiotics and so on. When citrobacter presented pure cultivation or dominant growth, it can be confirmed as opportunistic enteritis.更多还原