Lidin-Janson G, Lindberg U
Acta Paediatr Scand. 1977 May;66(3):349-54. doi: 10.1111/j.1651-2227.1977.tb07906.x.
The occurrence of the urinary strain in the anus, rectum and faeces was investigated in 27 girls with asymptomatic bacteriuria (ABU). In patients with bacteriuria of relatively short duration 46% of the faecal isolates were of the urinary strain as compared to only 18% in patients with bacteriuria of relatively long duration. In general the correlation between the urinary and faecal flora is striking at the time of establishment of ABU but diminishes with time. The diminished correlation may be due to two factors: firstly, the composition of the faecal flora changes with time. Secondly, the correlation may be obscured by complex changes in the properties of bacterial strains established in the urinary tract. Contamination by the infected urine did not seem to be a serious problem when the rectal mucosa was swabbed proximal to the anal canal.
对27例无症状菌尿（ABU）女童的肛门、直肠和粪便中的尿道菌株出现情况进行了调查。在菌尿持续时间相对较短的患者中，46%的粪便分离株为尿道菌株，而菌尿持续时间相对较长的患者中这一比例仅为18%。一般来说，在ABU确立时，尿道和粪便菌群之间的相关性很显著，但会随着时间减弱。相关性减弱可能有两个因素：首先，粪便菌群的组成随时间变化。其次，尿道中定植的细菌菌株特性的复杂变化可能会掩盖这种相关性。当在肛管近端擦拭直肠黏膜时，感染尿液的污染似乎不是一个严重问题。
