TABLE 1.

Listeria strains used in this study

Species	Serogroup	Lineage	Strain	Origin	Reference
L. monocytogenes	1/2a	2	La22	Salmon smokehouse	11
	1/2a	2	HU4239	Clinical case	36
	1/2a	2	V5a	Salmon smokehouse	11
	1/2a	2	C1-056	Clinical case	36
	4b	1	V518a	Salmon smokehouse	11
	4b	1	4542	Clinical case	11
	4b	1	C1-109	Clinical case	36
	1/2b	1	7418	Sausage	11
L. innocua			R255a	Salmon smokehouse	11