Table 1.

References and uses of the strains used.

Strain Used for Vitro Test and Challenge Test	Isolated
Listeria monocytogenes CECT 4032	Clinical isolate of meningitis
Listeria monocytogenes CECT 5366	Clinical isolate
Listeria monocytogenes DMC 1-23	Minced meat isolated
Listeria monocytogenes DMC 3-17	Fresh cheese isolated
Strain Used for In Vitro Test	Isolated
Listeria innocua CECT 4030	Fresh cheese isolated
Listeria innocua DMC 4	Minced meat isolated
Listeria innocua DMC 5-1	Fresh cheese isolated
Listeria innocua DMC 6-2	Food industry isolated
Listeria innocua DMC 7-3	Food industry isolated