Table 1. Major invasive listeriosis outbreaks*.
| Year | Location | Cases (% Mortality) | Food | Serotype |
|---|---|---|---|---|
| 1980–81 | Canada | 41 (34) | Coleslaw | 4b |
| 1983 | Massachusetts | 49 (29) | Pasteurized Milk | 4b |
| 1984 | Switzerland | 57 (32) | Soft Cheese | 4b |
| 1985 | California | 142 (34) | Jalisco Cheese | 4b |
| 1987–89 | UK | 823 | Pate | 4b |
| 1992 | France | 279 (30) | Rillettes (Pork) | 4b |
| 1998–99 | USA | 101 (21) | Hot Dog, Deli Meats | 4b |
| 1998–99 | Finland | 25 (24) | Butter | 3a |
| 2000 | USA | 29 (7) | Deli Turkey Meat | 1/2a |
| 2008 | Canada | 57 (40) | Deli Meat | 1/2a |
| 2011 | USA | 147 (33) | Cantaloupe | 1/2a, 1/2b |
| 2012 | USA | 22 (25) | Ricotta Salata Cheese | 1/2a |
| 2013 | USA | 6 (33) | Soft Cheese | 4b |
| 2014 | USA | 8 (12) | Soft Cheese | 1/2b |
| 2014 | USA | 35 (9) | Caramel Apple | 4b, 4bV |
| 2010–2015 | USA | 10 (30) | Ice Cream | 1/2b |
| 2015 | USA | 30 (10) | Soft Cheese | Unknown |
| 2016 | USA | 19 (5) | Packaged Greens | 4b-V |
| 2016 | USA | 9 (33) | Frozen Vegetables | 1/2a |