From: Distinct fermentation and antibiotic sensitivity profiles exist in salmonellae of canine and human origin
Antimicrobial
MIC breakpoint (μg/ml)
Interpretation of zone diameters (mm)
R>
≤S
<R
S≥
Ampicillin
8
14
Amoxicillin
Chloramphenicol
17
Gentamycin
4
2
Tetracycline*
1
19
24
Trimethaprim
15
18