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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