title: [Escherichia coli o serotyping in different patient groups with urinary tract infections (author's transl)].
abstract: Using 44 anti-O sera 789 Escherichia coli strains isolated from the urine of patients with urinary tract infections were typed. Of the 119 E. coli strains from the urine of children, 49.6% were O-typable; only 3.4% were rough strains. Of 357 strains from pregnant women, 47% were O-typable; 12.1% were rough strains. The largest proportion of O-typable E. coli strains was found among 314 strains isolated from adults with recurrent urinary tract infections (55.4% of the 314 strains); 8% were rough strains. The higher proportion of E. coli rough strains in adults, including pregnant women, indicate that once a pyelonephritis process has been established by virulent smooth strains in childhood, it can be sustained by rough strains at a later stage. Certain O serotypes were found to occur with a variable frequency in the individual patient groups. Enteropathogenic E. coli strains were seldom found in any of the three groups.
mesh_terms: D000328:Adult; D000367:Age Factors; D001437:Bacteriuria / Q000382:microbiology; D002648:Child; D003556:Cystitis / Q000382:microbiology; D004926:Escherichia coli / Q000145:classification*; D004927:Escherichia coli Infections / Q000382:microbiology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000382:microbiology; D011704:Pyelonephritis / Q000382:microbiology; D014552:Urinary Tract Infections / Q000382:microbiology*
vernacular_title: Escherichia coli-O-Serotypisierung bei verschiedenen Patientengruppen mit Harnwegsinfektionen.