Table 1. Swiss L. monocytogenes outbreaks and food clusters.
| Outbreak | Lineage | CC (ST) | No. isolates | cgMLST differences | SNP differences | Comment |
|---|---|---|---|---|---|---|
| Outbreak | ||||||
| 1 | I | 1 (252, 456, 746) | 3 | 4-6 | 3-4 | Human isolates |
| 2 | II | 8 (8, 742, 743, 1293-1296) | 11 | 2-10 | 1-6 | Food and human isolates |
| 3 | II | 8 (289) | 1 | 2 | 1 | Human isolates, international |
| 4 | II | 8 (8, 1298) | 2 | 2 | 1 | Human isolates, international |
| 5 | II | 9 (9) | 2 | 8 | 6 | Human isolates |
| 6 | II | 21 (22, 1302, 1303) | 3 | 5-7 | 4-6 | Human isolates |
| 7 | II | 155 (155, 1307) | 2 | 3 | 1 | Food and human isolate |
| 8 | II | 204 (204, 1299) | 3 | 10-12 | 8-10 | No conclusive epidemiological link |
| 9 | II | 403 (403, 1304-1306) | 6 | 2-11 | 1-10 | Human isolates |
| Food cluster | ||||||
| 1 | I | 2 (2, 724) | 2 | 3 | 2 | Food isolates |
| 2 | II | 7 (7, 158, 752) | 3 | 3-5 | 1-3 | Food isolates |
| 3 | II | 26 (501, 754) | 2 | 2 | 0 | Food isolates |
| 4 | II | 31 (325, 748) | 2 | 7 | 7 | Food isolates |
| 5 | II | 37 (37, 747) | 2 | 1 | 0 | Food isolates |
| 6 | II | 121 (121) | 2 | 3 | 1 | Food and environment isolates |