Table 2.
Colonization group (I, II, or III) was defined based on the correspondence of urine and faecal clones in individual subjects. In group I, a single faecal clone was detected, corresponding with the urine clone (U=F). In group II, multiple faecal clones were detected, including the subject's urine clone plus ⩾1 distinct ‘faecal only’ clone(s). In group III, the clones detected in faeces were all ‘faecal only’, i.e. did not include the urine clone. malX, marker for pathogenicity-associated island from strain CFT073; papA, P fimbriae structural subunit; papG, P fimbrial adhesin molecule; fimH, type-1 fimbriae; sfa/focDE, S and F1C fimbriae; kpsMII, group II capsule synthesis; hlyA, haemolysin; cnf1, cytotoxic necrotizing factor 1; traT, serum-resistance associated outer membrane protein; iutA, aerobactin; fyuA, yersiniabactin receptor; ibeA, invasion of brain endothelium. None of the strains showed papG allele I or afa/draBC (Dr-binding adhesins).
The number of virulence factors (VFs) was calculated for each isolate as the sum of pap (with the presence of papA and/or papG allele II or allele III counting as one unit) plus all others VFs detected.