Table 1. Foodborne Outbreaks Caused by STEC in Japan.
| Year | Prefecture/City | Setting (reference) | Serotype | Stx type | Symptomatic cases | Culture positives |
Likely mode of
transmission |
|---|---|---|---|---|---|---|---|
| 2001 | Chiba P. | Patient’s home (113) | O157:H7 | Stx1&2 | 195 | 257 | beef products (a) |
| 2002 | Fukuoka C. | Nursery school (114) | O157:H- | Stx2 | 74 | 112 | lightly salted cucumber (a) |
| 2002 | Utsunomiya C. | Hospital and home for the elderly (114) |
O157:H7 | Stx1&2 | 123 | 111 | Koumi-ae (a) |
| 2003 | Yokohama C. | Kindergarten (183) | O26:H11 | Stx1 | 141 | 449 | Foodborne |
| 2004 | Ishikawa P. | High school (184) | O111:H- | Stx1&2 | 110 | 103 | Foodborne |
| 2007 | Tokyo M. | School refectory (173) | O157:H7 | Stx2 | 467 | 204 | Foodborne |
| 2007 | Miyagi P., Sendai C. & Akita C. |
Restaurant (173) | O157:H7 | Stx1&2 | 314 | 173 | boxed meals (a) |
| 2009 | Saga P. | Nursery school (5) | O26:H11 | Stx1 | N.D. | 133 | lettuce (a) |
| 2010 | Mie P. | High school (6) | O157:H7 | Stx2 | 138 | 164 | school lunch (a) |
| 2011 | Toyama P. | Chain restaurants (7) | O111:H8 | Stx2, Stx- | 181 | 102 | Yukhoe (raw beef) (a) |
| O157:H7 | Stx1, Stx2,Stx1&2 | 38 | |||||
| 2011 | Yamagata P. | Festival (7) | O157:H7 | Stx1&2 | 287 | 189 | Japanese rice cakes (a) |
| 2012 | Osaka C. | Nursery school (8) | O26:H- | Stx1 | 68 | 115 | Foodborne |
| 2014 | Shizuoka C. | Street stall (10) | O157:H7 | Stx1&2 | 510 | 193 | Foodborne |
(a) Confirmed microbiologically; ND, no data.