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Table 4 Antibiotic susceptibility pattern of E. coli O157:H7 (n = 95)

From: Multiple antibiotic resistances among Shiga toxin producing Escherichia coli O157 in feces of dairy cattle farms in Eastern Cape of South Africa

Antibiotics class Antimicrobial agents Code Potency (μg) R S
     N (%)
Tetracycline Tetracycline T 30 92 (96.8) 3 (3.3)
  Oxytetracycline OT 30 90 (94.7) 5 (5.3)
Penicillin Ampicillin AMP 10 90 (94.7) 5 (5.3)
  Amoxicillin/Claculanic acid AUG 10 80 (84.2) 15 (15.8)
Cephalospirines Cephalothin KF 30 90 (94.7) 5 (5.3)
  Ceftazidime CAZ 30 30 (32) 65 (78)
  Cefuroxime CXM 30 78 (82) 17 (18)
Carbapenems Imipenem IMI 10 0 (0) 95 (100)
Phenicols Chloramphenicol CIP 10 85 (89.5) 10 (10.5)
Aminoglycosides Amikacin AK 30 6 (6.3) 89 (93.7)
  Kanamycin K 10 5 (5.3) 90 (94.7)
  Streptomycin S 10 80 (80.2) 15 (15.8)
  Gentamycin GM 10 8 (8.4) 87 (91.6)
Quinolones Ciprofloxacin CIP 5 12 (12.6) 83 (87.4)
  Norfloxacin NOR 10 10 (10.5) 85 (89.5)
  Enrofloxacin ENR 10 7 (7.4) 88 (92.6)
Foliate pathway inhibitor Sulfamethazole/Trimethoprim TS 25 80 (80.2) 15 (15.8)
  1. R Resistant, S Susceptible, T Tetracycline, OT Oxytetracycline, AMP Ampicillin, AUG Amoxilcillin/clavulanic acid, KF Cephalothin, CXM Cefuroxime, CAZ Ceftazidime, C Chloramphenicol, IMI Imipenem, AK Amikacin, K Kanamycin, S Streptomycin GM Gentamycin, CIP Ciprofloxacin, NOR Norfloxacin, ERN Enrofloxacin, TS Sulphamethoxazole/Trimethoprim