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Table 5 Antimicrobial susceptibility of Escherichia coli, Klebsiella, and Enterobacter species

From: Species distribution and antimicrobial susceptibility of gram-negative aerobic bacteria in hospitalized cancer patients

 

Escherichia coli

Klebsiella species

Enterobacter species

Antibiotic

B

S

I

R

B

S

I

R

B

S

I

R

Amikacin

32

81.5

5.6

13

32

62.8

5.8

31.4

32

45.5

6.1

48.5

Amx-Clav*

16/8

38.7

30.3

31

16/8

46.9

18.6

34.5

16/8

3

12.1

84.5

Ampicillin

16

15.9

7.1

77

16

1.8

0

98.2

16

3.3

0

96.7

Amp-Sul**

16/8

6.9

0

93.2

16/8

25.5

3.1

71.4

16/8

0

0

100

Aztereonam

16

38.7

5.4

55.9

16

40.6

2.9

56.5

16

16.7

0

83.3

Cefazolin

16

21.9

2.1

76

16

25.2

2.8

71.9

16

0

0

100

Cefepime

16

38.6

1.2

60.2

16

35.6

5.1

59.3

16

26.3

5.3

68.4

Cefopyrazon

32

32.2

1.2

66.7

32

37.4

3.6

59

32

11.8

5.9

82.4

Cefotaxime

16

32.3

1.5

66.2

32

37.3

3

59.6

32

16

16

68.4

Cefotetan

32

82.1

5.8

12.2

32

86.5

3.1

16.4

32

35.3

14.7

50

Cefoxitin

16

61.6

11.6

26.7

16

57.4

14.7

27.9

16

11.1

0

88.9

Ceftazidime

16

40.5

3.8

55.7

16

52

0

48

16

14.3

7.1

78.6

Ceftizoxime

32

37.8

8.5

53.6

32

42.4

4.6

53

32

6.3

12.5

81.3

Ceftriaxone

16

29.6

1.3

69.1

16

35.3

4.2

60.5

32

12.5

12.5

75

Cefuroxime

16

24.4

4.5

71.2

16

32.7

4.4

62.8

16

7.7

7.7

84.6

Cephalothin

16

7.1

3.4

90.5

16

25

4.4

70.6

16

0

0

100

Ciprofloxacin

2

33.7

0.6

55.9

2

60

4

36

2

69.7

0

30.3

Gatifloxacin

4

33.9

1.8

64.3

4

60.5

7

32.6

4

58.4

8.3

33.3

Gentamicin

8

42.3

1.8

66.7

8

50.4

0.8

48.8

4

38.7

6.5

54.8

Imipenem

8

91.2

0.7

8

8

85.1

1

13.9

8

66.7

11.1

22.2

Levofloxacin

4

34.4

2.7

62.9

4

63.2

6.1

30.7

4

80

3.3

16.7

Meropenem

8

50.5

0

49.5

8

80.5

0

30.7

8

75

7.1

17.9

Mezlocillin

64

3

3

94

64

0

2.9

97.1

64

1

2

97

Netilmicin

16

53.6

18.8

27.5

16

51.6

1.6

46.8

16

58.8

11.8

29.4

Piperacillin

64

3.4

2.3

94.3

64

2.7

2.7

94.6

64

11.8

5.9

82.4

Pip-Taz***

64

45.3

15.6

39.1

32

45.7

11.4

42.9

64

29.4

5.9

64.7

Sul-Tri****

16

19.9

0

80.1

16

34.7

0

65.3

16

23.5

0

76.5

Tetracycline

8

14.3

1.1

84.6

8

44.8

4.5

50.8

8

23.5

11.8

64.7

Ticarcillin

64

6.3

2.5

91.1

64

4.2

1.4

94.4

64

0

12.5

87.5

Tic-Cla*****

64

27.9

27.9

44.1

64

44.3

11.3

44.3

64

28

12

60

Tobramycin

8

35.1

5.8

59.1

8

42.2

5.2

52.6

8

39.3

7.1

53.6

  1. B = Breakpoint S = Susceptible I = Intermediate R = Resistant
  2. * Amoxicillin-Clavulanate ** Ampicillin-Sulbactam *** Piperacillin-Tazobactam ****Sulfamethoxazole- Trimethoprim *****Ticarcillin/Clavulanate