Author Tsuda, Toshihide| Tokinobu, Akiko| Yamamoto, Eiji| Suzuki, Etsuji|
Published Date 2015
Publication Title Epidemiology
Content Type Journal Article
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
Published Date 2011-04
Publication Title Acta Medica Okayama
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 英語
Copyright Holders CopyrightⒸ 2011 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 21519363
Web of Sience KeyUT 000289818800001
Author Babazono, Akira| Tsuda, Toshihide| Yamamoto, Eiji| Mino, Yoshio| Une, Hiroshi| Hillman, Alan L.|
Published Date 2003-8
Publication Title International Journal of Technology Assessment in Health Care
Volume volume19
Issue issue3
Content Type Journal Article
Author Babazono, Akira| Miyazaki, Motonobu| Imatoh, Takuya| Une, Hiroshi| Yamamoto, Eiji| Tsuda, Toshihide| Tanaka, Kiyoshi| Tanihara, Shinichi|
Published Date 2005-4
Publication Title International Journal of Technology Assessment in Health Care
Volume volume21
Issue issue2
Content Type Journal Article
Author Sanagi, Minoru| Yamamoto, Eiji| Nogi, Shigeji|
Published Date 1996-6
Publication Title Microwave Symposium Digest
Volume volume3
Content Type Journal Article