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Table 2 Results of genotyping studies in relation to the ExPEC pathotype

From: Extraintestinal pathogenic Escherichia coliO1:K1:H7/NM from human and avian origin: detection of clonal groups B2 ST95 and D ST59 with different host distribution

  No. of isolates and % prevalence relative to the total (n) Statistical significance of prevalence
P value**
Genetic profile APEC (n = 21) NMEC (n = 15) septicemic
/UPEC (n = 23)
APEC vs human ExPEC septicemic/UPEC vs NMEC
Phylogroup: B2
D
20 (95%)
1 (5%)
6 (40%)
9 (60%)
14 (61%)
9 (39%)
+ (0,001) - (0,177)
fimH 21 (100%) 13 (87%) 20 (87%) - (0,065) - (0,370)
FimAv MT78 2 (10%) 6 (40%) 10 (43%) + (0,007) - (0,551)
papC 21 (100%) 13 (87%) 21 (91%) - (0,162) - (0,360)
papGI 0 1 1 - (0,411) - (0,491)
papG II 21 (100%) 11 (73%) 17 (74%) + (0,008) - (0,291)
papG III 0 0 0 - -
sfa/focDE 0 1 0 - (0,644) - (0,395)
sfaS 0 1 0 - (0,644) - (0,395)
focG 0 0 0 - -
afa/draBC 0 0 0 - -
bmaE 0 0 0 - -
nfaE 0 0 0 - -
gafD 0 0 0 - -
cnf1 0 0 0 - -
cdt 0 1 0 - (0,644) - (0,395)
sat 0 10 (66%) 11 (48%) + (0,023) - (0,141)
tsh* 7 (33%) 1 (7%) 2 (9%) + (0,018) - (0,660)
hlyA 0 3 (20%) 3 (13%) - (0,061) - (0,292)
iroN* 21 (100%) 5 (33%) 10 (43%) + (0,000) - (0,390)
fyuA 20 (95%) 15 (100%) 23 (100%) - (0,356) - (1,000)
iutA* 20 (95%) 13 (87%) 20 (87%) - (0,295) - (0,370)
neuC (K1) 21 (100%) 15 (100%) 23 (100%) - -
cvaC* 13 (62%) 3 (20%) 6 (26%) + (0,003) - (0,490)
iss* 20 (95%) 3 (20%) 8 (35%) + (0,000) - (0,272)
traT* 20 (95%) 12 (80%) 20 (87%) - (0,207) - (0,292)
malX 20 (95%) 14 (93%) 23 (100%) - (0,466) - (0,395)
ibeA 2 (10%) 2 (13%) 1 (4%) - (0,354) - (0,286)
usp 20 (95%) 14 (93%) 23 (100%) - (0,466) - (0,395)
  1. *APEC plasmid-associated genes. Two-way comparisons were performed for each gene and for the phylogroups, using Fisher's exact test. APEC isolates were compared to human ExPEC, and septicemic/UPEC to NMEC. **For each comparison, a P value of < 0.05 was considered statistically significant (+), and a P value of > 0.05 was not considered statistically significant (-).