Skip to main content

Table 2 Clinical specimens, MICs, PFGE, ST131 positivity, and β-lactamase genes among ESBL-producing E. coli isolates

From: Molecular characteristics of extended-spectrum β-lactamase-producing Escherichia coli in Riyadh: emergence of CTX-M-15-producing E. coli ST131

No

Isolate

Specimen

MIC (μg/ml)

Pulsotype

ST131

β-lactamases

AMC

PIP

PTZ

CT

FOX

CAZ

CAZ/C

FP

IP

MER

ATM

GM

AMK

CIP

TIG

COL

FOS

1

EC22

Urine

>256

192

32

>256

2

48

32

>256

≤0.25

≤0.25

>256

>256

16

>32

≤0.25

≤0.5

≤0.25

A1

+

TEM-1 + CTX-M-15

2

EC30

Urine

>256

>256

>64

>256

0.5

64

32

>256

≤0.25

≤0.25

>256

>256

32

>32

≤0.25

≤0.5

≤0.25

A1

+

TEM-1 + CTX-M-15

3

EC11

Urine

>256

192

48

>256

0.5

48

>32

>256

≤0.25

≤0.25

>256

>256

32

>32

≤0.25

≤0.5

≤0.25

A2

+

TEM-1 + CTX-M-15

4

EC27

Urine

192

128

6

>256

16

>256

>32

>256

≤0.25

≤0.25

192

>256

6

24

≤0.25

≤0.5

≤0.25

B

+

TEM-1 + CTX-M-15

5

EC8

Urine

>256

>256

8

>256

12

>256

16

>256

≤0.25

≤0.25

>256

>256

>256

>32

≤0.25

≤0.5

≤0.25

C

-

TEM-1 + CTX-M-15

6

EC10

Urine

>256

>256

>64

>256

0.25

>256

>32

>256

≤0.25

0.5

>256

>256

6

>32

≤0.25

≤0.5

≤0.25

D

+

TEM-1 + CTX-M-15

7

EC1

Urine

>256

>256

8

>256

32

>256

16

>256

≤0.25

≤0.25

>256

>256

16

>32

≤0.25

≤0.5

≤0.25

E1

-

TEM-1 + CTX-M-15

8

EC6

Urine

>256

>256

12

>256

24

>256

8

>256

≤0.25

≤0.25

>256

>256

2

>32

≤0.25

≤0.5

≤0.25

E2

+

TEM-1 + CTX-M-15

9

EC12

Blood

>256

>256

12

>256

32

>256

8

>256

≤0.25

≤0.25

>256

64

4

4

≤0.25

≤0.5

≤0.25

E3

+

TEM-1 + CTX-M-15

10

EC9

Sputum

>256

>256

>64

>256

32

>256

8

>256

≤0.25

≤0.25

96

>256

6

>32

≤0.25

≤0.5

≤0.25

F

-

TEM-1 + CTX-M-15

11

EC31

Urine

>256

>256

>64

>256

16

>256

8

>256

≤0.25

≤0.25

>256

>256

4

2

≤0.25

≤0.5

≤0.25

G

+

TEM-1 + CTX-M-15

12

EC14

Urine

>256

>256

>64

>256

48

>256

32

>256

≤0.25

1

>256

>256

8

>32

≤0.25

≤0.5

≤0.25

H

+

TEM-1 + CTX-M-15

13

EC5

Urine

>256

>256

>64

>256

16

>256

32

>256

≤0.25

≤0.25

>256

>256

2

>32

≤0.25

≤0.5

≤0.25

I1

+

TEM-1 + CTX-M-15

14

EC32

Urine

>256

>256

>64

>256

24

128

16

>256

≤0.25

≤0.25

>256

96

2

>32

≤0.25

≤0.5

≤0.25

I2

+

TEM-1 + CTX-M-15

15

EC18

Blood

>256

>256

>64

4

32

16

2

24

≤0.25

≤0.25

48

>256

16

>32

≤0.25

≤0.5

≤0.25

J1

-

TEM-1 + CTX-M-15

16

EC20

Sputum

>256

>256

>64

>256

32

>256

>32

>256

≤0.25

≤0.25

>256

>256

48

>32

≤0.25

≤0.5

≤0.25

J2

+

TEM-1 + CTX-M-15

17

EC2

Urine

>256

>256

>64

>256

16

96

8

>256

≤0.25

≤0.25

>256

>256

4

>32

≤0.25

≤0.5

≤0.25

J3

+

TEM-1 + CTX-M-15

18

EC3

Urine

>256

>256

>64

>256

32

24

8

>256

≤0.25

≤0.25

>256

>256

8

>32

≤0.25

≤0.5

≤0.25

J4

-

TEM-1 + CTX-M-15

19

EC13

Urine

>256

>256

>64

>256

32

>256

32

>256

≤0.25

≤0.25

>256

>256

32

8

≤0.25

≤0.5

≤0.25

K1

-

TEM-1 + CTX-M-15

20

EC33

Urine

>256

>256

>64

>256

96

>256

16

>256

≤0.25

≤0.25

>256

192

64

12

≤0.25

≤0.5

≤0.25

K2

+

TEM-1 + CTX-M-15

21

EC16

Urine

>256

>256

>64

>256

24

>256

8

>256

≤0.25

≤0.25

>256

>256

64

8

≤0.25

≤0.5

≤0.25

K3

-

TEM-1 + CTX-M-15

22

EC4

Urine

>256

>256

>64

>256

0.25

192

16

>256

0.5

1.5

>256

4

2

>32

≤0.25

≤0.5

≤0.25

L1

+

TEM-1 + CTX-M-15

23

EC15

Urine

>256

>256

>64

>256

0.5

>256

18

>256

≤0.25

≤0.25

>256

4

0.5

>32

≤0.25

≤0.5

≤0.25

L1

+

TEM-1 + CTX-M-15

24

EC25

Urine

>256

>256

>64

>256

0.25

12

32

>256

≤0.25

≤0.25

>256

3

2

>32

≤0.25

≤0.5

≤0.25

L2

-

TEM-1 + CTX-M-15

25

EC26

Urine

>256

>256

>64

>256

192

>256

>32

>256

≤0.25

≤0.25

>256

>256

2

>32

≤0.25

≤0.5

≤0.25

M1

+

TEM-1 + CTX-M-15

26

EC29

Wound swab

>256

>256

>64

>256

0.25

>256

8

>256

≤0.25

≤0.25

>256

>256

6

>32

≤0.25

≤0.5

≤0.25

M2

+

TEM-1 + CTX-M-15

27

EC7

Blood

>256

>256

>64

>256

0.25

>256

8

>256

≤0.25

≤0.25

>256

2

96

1

≤0.25

≤0.5

≤0.25

N

-

TEM-1 + CTX-M-27

28

EC19

Stool

>256

>256

>64

>256

32

3

32

>256

≤0.25

≤0.25

>256

>256

128

>32

≤0.25

≤0.5

≤0.25

O

-

TEM-1 + CTX-M-15

29

EC21

Urine

128

64

8

>256

128

96

32

>256

≤0.25

≤0.25

>256

>256

>256

>32

≤0.25

≤0.5

≤0.25

P

+

TEM-1 + CTX-M-15

30

EC23

Urine

>256

192

32

>256

48

24

32

>256

≤0.25

≤0.25

>256

>256

128

>32

≤0.25

≤0.5

≤0.25

Q

-

TEM-1 + CTX-M-15

31

EC28

Urine

>256

>256

8

>256

32

4

16

>256

≤0.25

≤0.25

>256

4

2

>32

≤0.25

≤0.5

≤0.25

R

+

TEM-1 + CTX-M-15

  1. Abbreviations: AMK Amikacin, AMC Amoxicillin/Clavulanic acid, AZT Aztreonam, FP Cefepime, FOX Cefoxitin, CAZ Ceftazidime, CT Cefotaxime, CIP Ciprofloxacin, Clav Clavulanic acid, COL Colistin, GM Gentamicin, IP Imipenem, MER Meropenem, PIP Piperacillin, PTZ Piperacillin/tazobactam, TIG Tigecycline, FOS Fosphomycin.