Roberts A P, Phillips R
J Clin Pathol. 1979 May;32(5):492-6. doi: 10.1136/jcp.32.5.492.
One thousand bacterial isolates from consecutive suprapublic aspirations of urine in two groups of patients with symptomatic urinary tract infection and two groups with asymptomatic bacteriuria were studied. Staphylococci accounted for 13 and 27% of the isolates from symptomatic patients but for only 3 and 4% of strains from asymptomatic bacteriuria. Conversely, 18 and 30% of Escherichia coli isolates from asymptomatic bacteriuria were auto-agglutinable when tested with antisera to the common urinary O-serogroups, whereas such strains accounted for only 5 and 7% of the E. coli from symptomatic patients. The high prevalence of auto-agglutinable E. coli in asymptomatic bacteriuria was accompanied by a reduction in the frequency of the common uninary O-serogroups rather than other smooth strains.
对两组有症状尿路感染患者和两组无症状菌尿患者连续经耻骨上膀胱穿刺获取的1000株细菌分离株进行了研究。葡萄球菌在有症状患者的分离株中占13%和27%,但在无症状菌尿患者的菌株中仅占3%和4%。相反,用针对常见尿O血清群的抗血清检测时,无症状菌尿患者分离的大肠杆菌中有18%和30%可自身凝集,而此类菌株在有症状患者的大肠杆菌中仅占5%和7%。无症状菌尿中可自身凝集的大肠杆菌的高流行率伴随着常见尿O血清群频率的降低,而非其他光滑菌株频率的降低。