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Table 3 Antimicrobial susceptibility of diarrhoeagenic E. coli isolated from patients and controls from Al-Adan and Al-Farwaniya hospitals, Kuwait

From: Diarrhoeagenic Escherichia coli are not a significant cause of diarrhoea in hospitalised children in Kuwait

Organism (n)/antibiotic

MIC (μg/ml)

 

% Resistant

 

Range

MIC50

MIC90

 

EPEC a(37)

    

Amikacin

0.75 – 3

1.5

1.5

0

Ampicillin

3.0 – >256

4

>256

45.9

Ampicillin/sulbactam

0.023 – 64

3

16

29.7

Aztreonam

0.023 – 24

0.047

0.094

5.4

Cefotaxime

0.047 – >256

0.064

0.094

5.4

Chloramphenicol

0.032 – >256

4

8

8.1

Ciprofloxacin

0.006 – 0.25

0.008

0.125

0

Gentamicin

0.004 – 64

0.38

1

8.1

Imipenem

0.094 – 0.25

0.19

0.19

0

Tetracycline

0.5 – 192

1.5

96

40.5

Tircacillin/clavulanic acid

0.75 – 24

2

12

5.41

Trimethoprim

0.19 – >32

1

>32

43.2

ETEC b(9)

    

Amikacin

1 – 8

2

2

0

Ampicillin

2 – >256

>256

>256

66.7

Ampicillin/sulbactam

1.5 – 24

4

24

33.3

Aztreonam

0.023 – 32

0.032

0.047

11.1

Cefotaxime

0.047 – >256

0.064

3

11.1

Chloramphenicol

2 – 8

4

8

0

Ciprofloxacin

0.004 – >32

0.012

0.032

11.1

Gentamicin

0.25 – 128

1.5

2

11.1

Imipenem

0.094 – 0.75

0.19

0.5

0

Tetracycline

1 – 96

1.5

96

33.3

Tircacillin/clavulanic acid

1.5 – 12

2

8

0

Trimethoprim

0.19 – >32

0.38

>32

22.2

EAEC c (9)

    

Amikacin

1 – 4

2

2

0

Ampicillin

>256 – >256

>256

>256

100

Ampicillin/sulbactam

4 – 16

12

16

55.6

Aztreonam

0.016 – 32

0.094

12

33.3

Cefotaxime

0.032 – >256

0.19

>256

44.4

Chloramphenicol

3 – >256

4

8

11.1

Ciprofloxacin

0.004 – 4

0.008

0.19

11.1

Gentamicin

0.38 – 48

1

32

22.2

Imipenem

0.094 – 0.19

0.19

0.19

0

Tetracycline

1.5 – >256

96

192

88.9

Tircacillin/clavulanic acid

1 – 24

12

12

11.1

Trimethoprim

0.38 – >32

>32

>32

77.8

EIEC d(3)

    

Amikacin

1.5 – 2

1.5

2

0

Ampicillin

1.5 – 4

3

4

0

Ampicillin/sulbactam

1 – 2

1.5

2

0

Aztreonam

0.032 – 0.064

0.047

0.064

0

Cefotaxime

0.032 – 0.047

0.047

0.047

0

Chloramphenicol

3 – 4

4

4

0

Ciprofloxacin

0.004 – 0.125

0.094

0.125

0

Gentamicin

0.19 – 0.75

0.5

0.75

0

Imipenem

0.19 – 0.19

0.19

0.19

0

Tetracycline

32 – 96

96

96

100

Tircarcillin/clavulanic acid

0.38 – 1.5

1.5

1.5

0

Trimethoprim

>32 – >32

>32

>32

100

  1. aEnteropathogenic E. coli bEnterotoxigenic E. coli cEnteroaggregative E. coli dEnteroinvasive E. coli