| JaLCDOI | 10.18926/AMO/45264 |
|---|---|
| FullText URL | 65_2_63.pdf |
| Author | Mizoguchi, Yoshinori| Suzuki, Etsuji| Tsuchida, Hiroaki| Tsuda, Toshihide| Yamamoto, Eiji| Nakase, Katsumi| Doi, Hiroyuki| |
| Abstract | There have been only 2 reports of a large-scale foodborne outbreak arising from Salmonella enterica serotype Braenderup infection worldwide. On August 9, 2008, an outbreak originating in boxed lunches occurred in Okayama, Japan. We conducted a cohort study of 786 people who received boxed lunches from a particular catering company and collected 644 questionnaires (response rate:82%). Cases were defined as those presenting with diarrhea (≧4 times in 24h) or fever (≧38℃) between 12 am on August 8 and 12 am on August 14. We identified 176 cases (women/men:39/137);younger children (aged＜10 years) appeared to more frequently suffer severe symptoms. Three food items were significantly associated with higher risk of illness;tamagotoji (soft egg with mixed vegetables and meat) (relative risk (RR):11.74, 95% confidence interval (CI):2.98-46.24), pork cooked in soy sauce (RR:3.17, 95% CI:1.24-8.10), and vinegared food (RR:4.13, 95% CI:1.60-10.63). Among them, only the RR of tamagotoji was higher when we employed a stricter case definition. Salmonella Braenderup was isolated from 5 of 9 sampled cases and 6 food handlers. It is likely that unpasteurized liquid eggs contaminated by Salmonella Braenderup and used in tamagotoji caused this outbreak. |
| Keywords | boxed lunch cohort study foodborne diseases Salmonella Braenderup unpasteurized liquid eggs |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2011-04 |
| Volume | volume65 |
| Issue | issue2 |
| Publisher | Okayama University Medical School |
| Start Page | 63 |
| End Page | 69 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2011 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 21519363 |
| Web of Science KeyUT | 000289818800001 |
