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Table 5 Antibiotic resistance profile of Staphylococcus aureus isolates from raw kebab and hamburger samples

From: Antibiotic resistance in the pathogenic foodborne bacteria isolated from raw kebab and hamburger: phenotypic and genotypic study

Antibiotic class Specific antibiotic tested Concentration Interpretive categories and zone diameter breakpoints (nearest whole mm)a No. of isolates/Total isolates
Rb I S R I S
Macrolides Azithromycin 15 μg ≤ 13 14–17 ≥ 18 20/29 2/29 7/29
Cephalosporins Ceftriaxone 30 μg ≤ 13 14–20 ≥ 21 10/29 0/29 19/29
Cephalexin 30 μg ≤ 21 ≥ 22 29/29 0/29
Penicillins Penicillin 10 IU ≤ 28 ≥ 29 29/29 0/29
Amoxicillin 25 μg ≤ 28 ≥ 29 29/29 0/29
Aminoglycosides Gentamicin 10 μg ≤ 12 13–14 ≥ 15 1/29 0/29 28/29
Tetracyclines Tetracycline 30 μg ≤ 14 15–18 ≥ 19 20/29 2/29 7/29
Phenicols Chloramphenicol 30 μg ≤ 12 13–17 ≥ 18 11/29 18/29 0/29
  1. aFrom CLSI [32], CA-SFM [35]
  2. b R resistant, I intermediate, S susceptible