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Table 3 Molecular characteristics of the 36 CMY-2-producing E. coli isolated from human and pigs in Korea

From: Comparative genetic characterization of CMY-2-type beta-lactamase producing pathogenic Escherichia coli isolated from humans and pigs suffering from diarrhea in Korea

Origin

Isolate

Pathotype

Virotype

Resistance genes

Minimum inhibitory concentrations (μg/mL)1

Integron and gene cassettes

Plasmid replicon type

CZ

CF

FOX

CTX

CPD

CAZ

CRO

FEP

Human

HCT3R-12

STEC

stx1

TEM-1, OXA-1, sul1, aac(6’)-Ib, aac(3)-II, tetB, tetE

 > 16

 > 16

 > 64

16

 > 32

32

32

2

I (aadA5-dfrA17)

FIC, FIA, FIB, I1, HI1, Y

 

HCT3R-13

STEC

stx2

TEM-1, OXA-1, sul1, sul2, aac(6’)-Ib, aac(3)-II, tetB, tetE, qnrS

 > 16

 > 16

 > 64

 > 64

 > 32

 > 128

 > 128

 > 16

I (aadA5-dfrA17)

FIC, FIA, FIB, Y

 

HCT3R-14

STEC

stx1:stx2

TEM-1, sul1, tetB, tetE

 > 16

 > 16

8

 > 64

1

0.5

64

 ≤ 1

I (aadA5-dfrA17)

FIIA, FIA, I1, Y

 

HCT3R-16

STEC/EAEC

stx2:aggR

TEM-1, sul1, aac(6’)-Ib, aac(3)-II, tetB, tetE, qnrS

 > 16

 > 16

 > 64

4

32

4

 ≤ 1

 ≤ 1

I (-)

FIA, FIB, I1, HI1, Y

 

HCT3R-22

STEC

stx1:stx2

TEM-1, sul1, sul2, aac(6’)-Ib, tetB, tetE

 > 16

 > 16

8

 > 64

 > 32

64

 > 128

 > 16

–

FIA, FIB, I1, Y

Pig

CT3R-15

ETEC

F4:paa:LT:STb:EAST1

TEM-1, sul2, cmlA, tetA, tetE, qnrS

 > 16

 > 16

64

8

 > 32

8

16

 ≤ 1

–

FIC, A/C, FIA, FIB, I1, Y

 

CT3R-16

ETEC/STEC

F18:paa:LT:STa:Stx2:Stx2e

sul2, cmlA, tetA, tetE

 > 16

 > 16

 > 64

4

32

4

 ≤ 1

 ≤ 1

I (aadA5-dfrA17)

FIC, FIA, FIB, I1, HI1, Y

 

CT3R-18

-

–

sul1, sul2, tetA, tetB, tetE, qnrS

 > 16

 > 16

 > 64

8

 > 32

8

16

 ≤ 1

I (aadA1- aadA2- aadB-cmlA6)

A/C, FIB, I1, Y

 

CT3R-22

ETEC

F4:paa:LT:STb:EAST1

sul1, sul2, tetA, tetE

 > 16

 > 16

32

8

 > 32

4

8

 ≤ 1

I (aadA2-dfrA12)

FIC, FIB, I1, HI1, N

 

CT3R-23

ETEC

F4:paa:LT:STb:EAST1

sul2, tetA, tetE, qnrS

 > 16

 > 16

32

4

 > 32

4

8

 ≤ 1

–

FIC, FIB, I1, Y

 

CT3R-24

ETEC/STEC

F18:paa:LT:STb:Stx2:Stx2e:EAST1

sul2, cmlA, tetA, tetE

 > 16

 > 16

 > 64

8

 > 32

16

32

 ≤ 1

I (-)

FIC, A/C, FIB, I1, HI1, Y

 

CT3R-26

ETEC

F4:paa:LT:STb:EAST1

sul2, cmlA, tetA, tetE

 > 16

 > 16

32

4

32

8

 ≤ 1

 ≤ 1

I (-)

A/C, FIB, I1

 

CT3R-28

ETEC

STa:STb:EAST1

TEM-1, sul2, cmlA, tetA, tetE

16

16

64

4

 > 32

4

 ≤ 1

 ≤ 1

I (-)

A/C, FIB, HI1, N, HI2, Y

 

CT3R-30

ETEC

F5:paa

TEM-1, sul2, cmlA, aac(3)-II, tetA, tetB, tetE

 > 16

 > 16

 > 64

8

 > 32

16

16

 ≤ 1

I (aadA2-dfrA12)

A/C, FIB, HI1, N, L/M

 

CT3R-31

ETEC/STEC

F18:LT:Stx2e

TEM-1, sul2, cmlA, tetA, tetB, tetE

 > 16

 > 16

64

4

 > 32

4

2

 ≤ 1

I (-)

FIB, I1, Y

 

CT3R-32

ETEC/STEC

F18:LT:STa:Stx2e

TEM-1, OXA-1, sul1, sul2, cmlA, aac(6’)-Ib, tetA, tetE

 > 16

 > 16

64

4

 > 32

8

2

 ≤ 1

I (-)

FIB, I1, Y

 

CT3R-33

ETEC

F4:LT:STb:EAST1

TEM-1, sul2, catA1, aac(3)-II, tetA, tetE, qnrS

 > 16

 > 16

 > 64

16

 > 32

32

16

 ≤ 1

I (aadA2-aadA28-dfrA12)

FIC, A/C, FIA, FIB, I1, N

 

CT3R-34

ETEC

F4:LT:STb:EAST1

TEM-1, sul2, aac(3)-II, tetA, tetE, qnrS

 > 16

 > 16

 > 64

8

 > 32

32

16

 ≤ 1

I (aadA2-linF)

FIC, A/C, FIA, FIB, I1, N

 

CT3R-35

ETEC/STEC

F18:LT:STa:Stx2e

cmlA, tetA, tetE

 > 16

 > 16

 > 64

4

 > 32

8

2

 ≤ 1

I (aadA1)

FIB, I1, HI1, L/M, Y

 

CT3R-36

ETEC/STEC

F18:LT:STa:Stx2e

TEM-1, sul1, cmlA, tetA, tetE

 > 16

 > 16

32

4

 > 32

32

2

2

I (aadA2- aadA12- aadA23)

FIB, I1, HI1, L/M, Y

 

CT3R-37

ETEC/STEC

F18:LT:STa:Stx2e

TEM-1, cmlA, tetA, tetE

 > 16

 > 16

64

4

32

8

2

 ≤ 1

I(-)

FIC, FIB, I1, HI1, L/M, Y

 

CT3R-38

ETEC

F18:AIDA

TEM-1, sul2, cmlA, tetA

 > 16

 > 16

64

16

 > 32

16

16

 ≤ 1

I (aadA2-dfrA12)

II (aadA1-sat2-dfrA1)

A/C, I1, Y

 

CT3R-39

ETEC/STEC

F18:paa:STa:Stx2e

TEM-1, cmlA, tetA, tetE

 > 16

 > 16

64

4

32

8

 ≤ 1

 ≤ 1

I (aadA2-linF)

I1, HI1, L/M, Y

 

CT3R-40

ETEC

F4:F18:LT:STa:STbEAST1

TEM-1, sul1, cmlA, tetA, tetE

 > 16

 > 16

64

4

 > 32

8

16

 ≤ 1

I (aadA1-dfrA1)

FIC, FIB, I1, HI1, L/M, Y

 

CT3R-41

ETEC/STEC

F18:LT:Stx2e

TEM-1, OXA-1, sul1, sul2, aac(6’)-Ib, tetA, tetE, qnrS

 > 16

 > 16

64

4

32

8

 ≤ 1

 ≤ 1

I (aadA1-dfrA1)

FIC, FIB, I1, N, HI2

 

CT3R-42

ETEC

F4:LT:STb:EAST1

TEM-1, sul2, aac(3)-II, tetA, tetE, qnrS

 > 16

 > 16

 > 64

16

 > 32

32

16

 ≤ 1

I (-)

FIC, A/C, FIA, FIB, I1, N, Y

 

CT3R-43

ETEC

F18:LT:STa:STbEAST1

TEM-1, sul1, sul2, tetA, tetE

 > 16

 > 16

 > 64

8

 > 32

4

8

 ≤ 1

I (aadA7-aac(3)-Id)

FIC, A/C, FIB, I1, Y

 

CT3R-44

ETEC

F4:LT:STb:EAST1

TEM-1, sul2, aac(3)-II, tetA, tetE, qnrS

 > 16

 > 16

 > 64

32

 > 32

128

64

 ≤ 1

I (-)

FIC, A/C, FIA, FIB, I1, N, Y

 

CT3R-45

ETEC

AIDA:STb:EAST1

TEM-1, sul1, sul2, tetA, tetE

 > 16

 > 16

64

8

 > 32

16

32

 ≤ 1

I (aadA1)

A/C, FIB, HI1, N, Y

 

CT3R-46

ETEC

F4:LT:STb:EAST-1

TEM-1, sul2, cmlA, aac(3)-II, tetA, tetE

 > 16

 > 16

64

8

 > 32

32

16

 ≤ 1

I (aadA2-dfrA12)

FIC, A/C, FIB, Y

 

CT3R-47

ETEC

F4:LT:STb:EAST-1

sul2, aac(3)-II, tetA, tetE, qnrS

 > 16

 > 16

32

8

 > 32

4

8

 ≤ 1

I (-)

FIC, A/C, FIB, I1

 

CT3R-50

-

-

sul2, tetA

 > 16

 > 16

64

8

 > 32

32

16

 ≤ 1

-

FIC, A/C, FIB, N

 

CT3R-51

ETEC/STEC

F18:LT:Stx2e:paa

TEM-1, sul2, cmlA, tetA, qnrS

 > 16

 > 16

64

8

 > 32

8

16

 ≤ 1

I (-)

A/C, I1

 

CT3R-52

ETEC/STEC

F18:LT:STa:Stx2e:paa

TEM-1, sul1, sul2, cmlA, aac(6’)-Ib, aac(3)-II, tetA, tetB, tetE

 > 16

 > 16

 > 64

8

 > 32

16

16

 ≤ 1

I (arr-3-aadA16-dfrA27)

FIC, FIA, FIB, I1, Y

 

CT3R-53

STEC

F18:Stx2e

TEM-1, sul1, sul2, tetA, tetE

 > 16

 > 16

64

4

 > 32

4

2

 ≤ 1

I (aadA2-dfrA12)

I1, HI1, N, Y

 

CT3R-55

ETEC

F18:paa:AIDA:STb:EAST1

TEM-1, cmlA, tetA, tetE

 > 16

 > 16

64

8

 > 32

8

16

 ≤ 1

(-)

I1, N, Y

  1. aCZ Cefazolin, CF Cephalothin, FOX Cefoxitin, CTX Cefotaxime, CPD Cefpodoxime, CAZ Ceftazidime, CRO Ceftriaxone, FEP Cefepime