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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