Table 3 Breakpoint values of each antimicrobial agent and phenotypic antimicrobial susceptibility profiles of 67 tested isolates used in this study according to EUCAST, 2015
Antimicrobial agents | Conc. (µg) | Diameter of inhibition zone (mm) | S. Typhimurium (58) | S. Enteritidis (6) | Non typable (3) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
R | I | S | R | I | S | R | I | S | R | I | S | ||
Ampicillin | 10 | ≤13 | 14–16 | ≥17 | 58 (100%) | – | – | – | – | 6 (100%) | 3 (100%) | – | – |
Chloramphenicol | 30 | ≤12 | 13–17 | ≥18 | 58 (100%) | – | – | – | – | 6 (100%) | 3 (100%) | – | – |
Gentamicin | 10 | ≤12 | 13–15 | ≥16 | – | – | 58 (100%) | – | – | 6 (100%) | – | 3 (100%) | – |
Streptomycin | 25 | ≤11 | 12–14 | ≥15 | – | 6 (10.3%) | 52 (89.7%) | – | – | 6 (100%) | – | 3 (100%) | – |
Tetracycline | 30 | ≤14 | 15–18 | ≥19 | 58 (100%) | – | – | – | – | 6 (100%) | 3 (100%) | – | – |
Trimethoprim/sulphamethoxazole | 25 | ≤10 | 11–15 | ≥16 | 3 (5.2%) | – | 55 (94.8%) | – | – | 6 (100%) | – | 3 (100%) | – |