TABLE 1.
Listeria monocytogenes strains used in this study
| Strain | Serotypea | Lineagea | Origin (yr of isolation) | Reference |
|---|---|---|---|---|
| 558 | 1/2 | NK | Pork meat | |
| R2-500b | 4b | 1 | Food, epidemic case, North Carolina (2000) | 12 |
| R2-501b | 4b | 1 | Human, epidemic case, North Carolina (2000) | 12 |
| Scott A | 4b | 1 | Human | |
| N1-225b | 4b | 1 | Human, epidemic case, United States (1998-99) | 12 |
| N1-227b | 4b | 1 | Food, epidemic case, United States (1998-99) | 12 |
| C1-056b | 1/2a | 2 | Human, sporadic case | 12 |
| N3-031b | 1/2a | 2 | Food (hot dog), sporadic case (1989) | 12 |
| J1-101b | 1/2a | 2 | Human, sporadic case (1989) | 12 |
| 10403Sc | 1/2a | 2 | NK | 5 |
| A1-254c | ΔsigB mutant of 10403S | 27 | ||
| J1-158b | 4b | 3 | Goat | 12 |
| J1-168b | 4a | 3 | Human, sporadic case | 12 |
a
NK, not known. Serotype and lineage designations were provided by the donor or reference (except for strains 558 and Scott A).
b
Kindly provided by Martin Wiedmann (Department of Food Science, Cornell University, Ithaca NY).
c
Kindly provided by Kathryn J. Boor (Department of Food Science, Cornell University, Ithaca NY).