TABLE 1.

Clinical and phenotypical data of the Campylobacter jejuni studied isolates^a

	C. jejuni isolates_Id	MLST_ST (clonal complex)	Biological sample (isolation source)	Isolation date	Antimicrobial susceptibility (MICs in mg/L)
					Ery	Cip	Tet	Amp	Imp	Ert	Mer
Case 1 (40-yr-old-male)	A1	1709 (ST-1034 clonal complex)	Blood	26-08-2009	0.19	≥32	≥256	24	0.032	0.047	0.023
	A2		Blood	11-11-2009	≥256	≥32	≥256	24	0.032	0.094	0.023
	A3		Stool	13-11-2009	≥256	≥32	96	24	0.032	0.064	0.016
	A4		Blood	12-01-2010	≥256	≥32	≥256	32	0.064	64	8
	A5		Blood	18-01-2010	≥256	≥32	≥256	≥256	0.19	128	32
	A6		Stool	05-03-2010	≥256	≥32	≥256	≥256	0.094	64	8
	A7		Stool	15-06-2010	≥256	≥32	≥256	32	0.032	0.38	0.047
Case 2 (40-yr-old-male)	B1	1233 (ST-353 clonal complex)	Blood	12-09-2016	≥256	≥32	32	≥256	0,25	2	0,25
	B2		Blood	02-11-2016	≥256	≥32	≥256	≥256	0,125	2	0,25
	B3		Stool	18-11-2016	≥256	≥32	≥256	≥256	0,125	≥512	8
	B4		Blood	30-11-2016	≥256	≥32	≥256	≥256	0,125	≥512	8
	B5		Stool	14-12-2016	≥256	≥32	≥256	≥256	0,25	≥512	32

^aCutoff values used for strain categorization as resistant (R) were 4 mg/L for erythromycin (Ery), 0.5 mg/L for ciprofloxacin (Cip), 2 mg/L for tetracycline (Tet), 16 mg/L for ampicillin (Amp), and 1 mg/L for ertapenem (Ert) (https://www.sfm-microbiologie.org/wp-content/uploads/2022/05/CASFM2022_V1.0.pdf), and as susceptible (S) <2 mg/L or R > 8 mg/L for meropenem (Mer) and S < 2 mg/L or R > 4 mg/L for imipenem (Imp) (https://www.eucast.org/fileadmin/src/media/PDFs/EUCAST_files/Breakpoint_tables/v_13.0_Breakpoint_Tables.pdf).