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Table 5 Susceptibility of organisms isolated from CSF

From: Antimicrobial sensitivity patterns of cerebrospinal fluid (CSF) isolates in Namibia: implications for empirical antibiotic treatment of meningitis

Organism

Antimicrobial

Total, N

S

S, %

R

R, %

I

I, %

Streptococcus 206 isolates

Ciprofloxacin

34

34

100

0

0

 

0

 

Ceftriaxone

89

87

97.8

2

2.2

0

0

 

Ofloxacin

40

39

97.5

1

2.5

0

0

 

Cefuroxime

28

27

96.4

1

3.6

0

0

 

Chloramphenicol

171

160

93.6

9

5.3

2

1.2

 

Vancomycin

110

102

92.7

6

5.5

2

1.8

 

Erythromycin

186

162

87.1

23

12.4

1

0.5

 

Clindamycin

140

120

85.7

19

13.6

1

0.7

 

Tetracycline

180

146

81.1

25

13.9

9

5

 

Gentamicin

5

4

80

1

20

0

0

 

Amoxicillin

24

18

75

6

25

0

0

 

Penicillin

169

109

64.5

58

34.3

2

1.2

 

Oxacillin

153

79

51.6

69

45.1

5

3.3

 

Sulfamethoxazole/trimethoprim

175

48

27.4

125

71.4

2

1.1

Neisseria meningitidis 107 isolates

Chloramphenicol

102

97

95.1

3

2.9

2

2

 

Ceftriaxone

105

97

92.4

5

4.8

3

2.9

 

Penicillin

105

86

81.9

16

15.2

3

2.9

 

Erythromycin

14

10

71.4

4

28.6

0

0

 

Tetracycline

24

17

70.8

3

12.5

4

16.7

 

Sulfamethoxazole/trimethoprim

102

22

21.6

79

77.5

1

1

Haemophilus 59 isolates

Amoxicillin

53

32

60.4

18

34

3

5.7

 

Amoxicillin/Clavulanic Acid

18

14

77.8

4

22.2

 

0

 

Ceftriaxone

52

46

88.5

5

9.6

1

1.9

 

Cefuroxime

20

14

70

5

25

1

5

 

Chloramphenicol

55

48

87.3

6

10.9

1

1.8

 

Ciprofloxacin

11

11

100

0

0

 

0

 

Ofloxacin

23

22

95.7

0

0

1

4.3

 

Penicillin

6

6

100

 

0

 

0

 

Tetracycline

27

21

77.8

4

14.8

2

7.4

 

Sulfamethoxazole/trimethoprim

37

10

27

25

67.6

2

5.4

Staphylococcus 36 isolates

Amikacin

7

7

0

0

0

0

0

 

Vancomycin

22

20

90.9

0

0

2

9.1

 

Fusidic acid

34

29

85.3

1

2.9

4

11.8

 

Ciprofloxacin

21

17

81

4

19

 

0

 

Cephalothin

8

6

75

2

25

0

0

 

Clindamycin

27

19

70.4

6

22.2

2

7.4

 

Tetracycline

27

19

70.4

8

29.6

 

0

 

Erythromycin

31

21

67.7

10

32.3

0

0

 

Oxacillin

9

6

66.7

3

33.3

0

0

 

Cloxacillin

29

19

65.5

10

34.5

 

0

 

Cefuroxime

5

3

60

2

40

0

0

 

Gentamicin

17

7

41.2

9

52.9

1

5.9

 

Penicillin

34

8

23.5

25

73.5

1

2.9

 

Amoxicillin

14

3

21.4

11

78.6

0

0

 

Sulfamethoxazole/trimethoprim

29

0

0

18

62.1

11

37.9

Escherichia coli 22 isolates

Ceftriaxone

17

17

100

 

0

 

0

 

Chloramphenicol

6

6

100

 

0

 

0

 

Ciprofloxacin

13

12

92.3

1

7.7

 

0

 

Cefuroxime

19

15

78.9

2

10.5

2

10.5

 

Piperacillin-Tazobactam

4

3

75

1

25

 

0

 

Cephalothin

10

7

70

1

10

2

20

 

Gentamicin

17

11

64.71

3

17.65

3

17.65

 

Tetracycline

5

3

60

2

40

 

0

 

Amoxicillin/Clavulanic Acid

7

4

57.14

3

42.86

 

0.0

 

Erythromycin

4

2

50

2

50

 

0

 

Penicillin

4

2

50

2

50

 

0

 

Sulfamethoxazole/trimethoprim

21

3

14.29

18

85.71

 

0

 

Amoxicillin

22

3

13.6

19

86.4

 

0

Enterococcus species 9 isolates

Penicillin

8

7

87.5

1

12.5

0

0

 

Vancomycin

9

7

77.8

1

11.1

1

11.1

 

Amoxicillin

7

5

71.4

2

28.6

0

0

 

Ciprofloxacin

3

2

66.7

1

33.3

 

0

 

Erythromycin

3

1

33.3

2

66.7

0

0

 

Clindamycin

8

2

25

6

75

0

0

 

Tetracycline

2

0

0

2

100

0

0

 

Sulfamethoxazole/trimethoprim

2

0

0

2

100

0

0

Acinetobacter species 8 isolates

Imipenem

8

7

87.5

1

12.5

 

0

 

Sulfamethoxazole/trimethoprim

7

6

85.7

1

14.3

 

0

 

Gentamycin

8

6

75

2

25

0

0

 

Piperacillin-Tazobactam

8

6

75

1

12.5

1

12.5

 

Ceftazidime

6

4

66.7

1

16.7

1

16.7

 

Piperacillin

2

1

50

1

50

 

0

Klebsiella 7 isolates

Ciprofloxacin

5

5

100

 

0

 

0

 

Amikacin

6

5

83.3

1

16.7

 

0

 

Ceftriaxone

7

5

71.4

2

28.6

 

0

 

Gentamicin

6

4

66.7

1

16.7

1

16.7

 

Piperacillin-Tazobactam

3

2

66.7

1

33.3

 

0

 

Cefuroxime

6

3

50

2

33.3

1

16.7

 

Sulfamethoxazole/trimethoprim

7

3

42.9

4

57.1

 

0

 

Cephalothin

5

1

20

4

80

0

0

 

Amoxicillin

7

1

14.3

4

57.1

2

28.6

ESBL’s Klebsiella pneumoniae 7 isolates

Amikacin

7

5

71.43

1

14.3

1

14.3

 

Ciprofloxacin

7

7

100

 

0

 

0

 

Imipenem

7

7

100

 

0

 

0

 

Piperacillin-Tazobactam

7

7

100

 

0

 

0

 

Ceftazidime

7

2

28.6

5

71.4

 

0

 

Amoxicillin

7

 

0

7

100

 

0

 

Ceftriaxone

7

 

0

7

100

 

0

 

Cefuroxime

7

 

0

7

100

 

0

 

Gentamicin

7

 

0

7

100

 

0

 

Sulfamethoxazole/trimethoprim

7

 

0

7

100

 

0

Pseudomonas species 7 isolates

Amikacin

7

7

100

 

0

 

0

 

Ceftazidime

7

7

100

 

0

 

0

 

Ciprofloxacin

6

6

100

 

0

 

0

 

Imipenem

6

6

100

 

0

 

0

 

Gentamycin

6

5

83.3

1

16.7

0

0

 

Piperacillin-Tazobactam

7

4

57.1

 

0

3

42.9

 

Sulfamethoxazole/trimethoprim

7

3

42.9

4

57.1

 

0

  1. Source: MEDITECH Database 2009–2012. legend: S=sensitive; R=resistant and I=indeterminate.