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Table 5 Antimicrobial resistance profiles of gram-negative bacterial isolates (n = 101) from suspected otitis media patients with discharge at Jimma Town, Jimma, Southwest, Ethiopia

From: Antimicrobial susceptibility patterns of bacteria isolated from patients with ear discharge in Jimma Town, Southwest, Ethiopia

Bacterial isolates

Total No. isolates

Resistance pattern of antimicrobial agents (%)

AMP

AMC

CRO

CIP

C

FEP

CN

CTZ

SXT

TOB

AK

CXM

E. coli

9

88.9

33.3

33.3

11.1

11.1

22.2

33.3

11.1

77.8

66.7

11.1

44.4

P. vulgaris

22

100

59.1

36.4

0

54.5

27.3

18.2

27.3

63.6

50

18.2

59

P. aeruginosa

19

NA

NA

100

21.4

NA

64.3

14.3

71.4

NA

42.9

21.4

NA

P. mirabilis

10

100

50

50

10

70

50

30

30

90

40

30

70

Klebsiella spp.

8

100

62.5

37.5

0

37.5

25

37.5

25

62.5

25

12.5

62.5

Providencia spp.

16

100

87.5

62.5

12.5

56.3

56.3

25

56.3

81.3

56.3

18.8

68.8

Citrobacter spp.

12

100

58.3

33.3

0

41.7

16.7

8.3

16.7

66.7

66.7

16.7

66.7

Enterobacter spp.

3

100

66.7

33.3

0

66.7

33.3

0

0

0

66.7

0

66.7

M. morganii

2

100

50

50

0

0

0

0

0

50

0

0

0

Total

101

98.8

61

48.5

6.9

47.6

35.6

19.8

41.6

69.5

47.5

19.8

80.6

  1. Note: AMP ampicillin/amoxicillin, AMC amoxicillin clavulanic acid, CRO ceftriaxone, CIP ciprofloxacin, C chloramphenicol, FEP cefepime, CN gentamicin, CAZ ceftazidime, SXT sulfamethoxazole-trimethoprim, TOB tobromycin, AK amikacin, CXM cefuroxime, NA not applicable