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Table 2 Virulence gene profiles of phylogenetic group D E . coli clonal groups

From: Diversity and biofilm-production ability among isolates of Escherichia coli phylogroup D belonging to ST69, ST393 and ST405 clonal groups

Virulence genesa N° of isolates (%) Pvaluea
ST69 (n = 13) ST393 (n = 11) ST405 (n = 11) ST69 vsST393 ST69 vsST405 ST393 vsST405
Adhesins       
  fimH 13 (100%) 11 (92%) 9 (82%) 0.480 0.199 0.590
  papA 11 (85%) 8 (67%) 0 (0%) 0.378 0.000 0.001
  papC 12 (92%) 10 (83%) 0 (0%) 0.593 0.000 0.000
  papEF 12 (92%) 9 (75%) 2(18%) 0.322 0.001 0.012
  papG allele I 0 (0%) 1 (8%) 0 (0%) 0.480 - 1.000
  papG allele II 9 (69%) 10 (83%) 0 (0%) 0.645 0.001 0.000
  papG allele III 9 (69%) 2 (17%) 1 (9%) 0.015 0.005 1.000
  bmaE 2 (15%) 0 (0%) 0 (0%) 0.480 0.482 -
  gafD 2 (15%) 0 (0%) 0 (0%) 0.480 0.482 -
  iha 10 (77%) 10 (83%) 2 (18%) 1.000 0.012 0.003
Toxins       
  sat 10 (77%) 9 (75%) 6 (55%) 1.000 0.390 0.400
  tsh 1 (8%) 7 (58%) 3 (27%) 0.011 0.300 0.214
Siderophores       
  fyuA 8 (62%) 8 (67%) 11 (100%) 1.000 0.041 0.093
  iutA 11 (85%) 11 (92%) 6 (55%) 1.000 0.182 0.069
  iroN 5 (39%) 1 (8%) 1 (9%) 0.160 0.166 1.000
  ireA 2 (15%) 0 (0%) 1 (9%) 0.480 1.000 1.000
Capsule       
  kspMT II 12 (92%) 11 (100%) 2 (18%) 1.000 0.001 0.000
  kpsMT III 0 (0%) 0 (0%) 5 (46%) - 0.011 0.014
  K1 0 (0%) 4 (33%) 0 (0%) 0.039 - 0.093
  K5 12 (92%) 11 (100%) 0 (0%) 1.000 0.000 0.000
Protectins       
  traT 13 (100%) 3 (25%) 10 (91%) 0.000 0.458 0.003
  iss 5 (39%) 6 (50%) 3 (27%) 0.695 0.679 0.400
Miscellaneous       
  usp 1 (8%) 0 (0%) 0 (0%) 1.000 1.000 -
  ompT 12 (92%) 6 (50%) 0 (0%) 0.030 0.000 0.014
  malX (PAI) 0 (0%) 1 (8%) 7 (64%) 0.480 0.001 0.009
ExPEC statusb 12 (100%) 11 (100%) 2 (18%) - 0.000 0.000
Virulence score 13.23 (± 1.641) 11.67 (± 3.576) 6.27 (± 3.197) 1.000 0.007 0.053
Range 9 – 15 8 – 15 2 – 14 - - -
  1. ap values (Fisher’s exact test) are shown in bold when p < 0.05. b ExPEC status defined by the presence of two or more among papA, papC, sfa/foc, afa/draBC, iutA and kpsMTII, as suggested [8].