Table 3.

Cut-off values used to determine the antibiotic resistance of Campylobacter along with the information about the concentration of the disc used.

CLSI1 Class	Antimicrobial agents	Antimicrobial concentration range (µg/mL)	MIC2 interpretive criteria (µg/mL)
			Susceptible	Resistance	Reference source
Macrolides	AZI	0.015-64	≤0.25	≥0.5	NARMS3
	ERY	0.03-64	≤4	≥8	NARMS
Lincosamides	CLI	0.03-16	≤0.5	≥1	NARMS
Aminoglycosides	GEN	0.25-32	≤2	≥4	NARMS
Quinolones	CIP	0.015-64	≤0.5	≥1	NARMS
	NAL	4-64	≤16	≥32	NARMS
Tetracyclines	TET	0.06-64	≤1	≥2	NARMS
Phenicol	FLO	0.03-64	≤4	≥8	NARMS

Abbreviations: AZI, azithromycin; CIP, ciprofloxacin; CM, clindamycin; ERY, erythromycin; FLO, florfenicol; GEN, gentamycin; NAL, nalidixic acid; TET, tetracycline.

¹Clinical and Laboratory Standards Institute.

²Minimum Inhibatory Concentration.

³National Antimicrobial Resistance Monitoring System.