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大肠杆菌是包括尿路感染在内的非肠道疾病最常见的致病菌之一,它具有粘附到尿道上皮细胞的能力、抗吞噬作用等多种毒力因子导致病变的发生。作者从患肾盂肾炎和下尿路感染的2岁以下儿童尿液中分离出168株大肠杆菌,对分离菌株作了一系列的实验鉴定:①用血凝试验检查分离菌株对甘露醇的耐受性或敏感性:当血凝发生在有甘露醇存在或缺乏时,为甘露醇抵抗血凝(MRHA);当甘露醇抑制血凝时,为甘露醇敏感血凝(MSHA);②P纤毛(PF)检测通过
Escherichia coli is one of the most common pathogenic bacteria of parenteral diseases including urinary tract infection. It has the ability to adhere to the urethral epithelial cells, and various virulence factors such as anti-phagocytosis lead to the occurrence of lesions. The authors isolated 168 strains of Escherichia coli from the urine of children under 2 years of age with pyelonephritis and lower urinary tract infection and conducted a series of laboratory tests on the isolates: ① To test the tolerance of the isolates to mannitol by the hemagglutination test Sexual or Sensitive: Mannitol resists blood clotting (MRHA) when it occurs in the presence or absence of mannitol; Mannitol-sensitive hemagglutination (MSHA) when mannitol inhibits blood clotting; ) Test passed