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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 (-).