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Table 3 Antibiotic breakpoints as defined by EUCAST (2017) and *the British Society of Antimicrobial Chemotherapy (2012) [50,51,52]

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

8

14

14

Amoxicillin

8

8

14

14

Chloramphenicol

8

8

17

17

Gentamycin

4

2

14

17

Tetracycline*

2

1

19

24

Trimethaprim

4

2

15

18

  1. R = resistance; I = intermediate and S = sensitive