Occurrence and Antimicrobial Susceptibility Profile of Salmonella Isolates from Animal Origin Food Items in Selected Areas of Arsi Zone, Southeastern Ethiopia, 2018/19

Table 1

Performance standards for antimicrobial susceptibility testing of Salmonella.

No	Antimicrobial agent	Disc code	Potency (µg)	Resistant	Intermediate	Susceptible
1	Ampicillin	AMP	10	≤13	14–16	≥17
2	Amoxicillin-clavulanic acid	AMC	30	≤13	14–17	≥18
3	Ceftriaxone	CRO	30	≤19	20–22	≥23
4	Chloramphenicol	CHL	30	≤12	13–17	≥18
5	Ciprofloxacin	CIP	5	≤20	21–30	≥31
6	Gentamicin	GN	10	≤12	13–14	≥15
7	Kanamycin	KAN	30	≤13	14–17	≥18
8	Nalidixic acid	NA	30	≤13	14–18	≥19
9	Streptomycin	STR	10	≤11	12–14	≥15
10	Tetracycline	TTC	30	≤11	12–14	≥15
11	Trimethoprim-sulfamethoxazole	W	5	≤10	11–15	≥16
12	Sulphonamides	S3	300	≤12	13–16	≥17
13	Nitrofurantoin	NTR	50	≤14	15–16	≥17

Source: CLSI, (2016).