Volume 5, Number 3—June 1999
Dispatch
Factory Outbreak of Escherichia coli O157:H7 Infection in Japan
Yoshiyuki Watanabe*
, Kotaro Ozasa*, Jonathan H. Mermin†, Patricia M. Griffin†, Kazushige Masuda‡, Shinsaku Imashuku§, and Tadashi Sawada*
, Kotaro Ozasa*, Jonathan H. Mermin†, Patricia M. Griffin†, Kazushige Masuda‡, Shinsaku Imashuku§, and Tadashi Sawada*Table
Factory cafeteria foods associated with illness, July 11, 1996, Kyoto, Japan
| Food | Case-patients exposed/total (%) | Controls exposed/total (%) | Odds ratioa (95% CI) | p value |
|---|---|---|---|---|
| Radish sprout salad | 17/29(58.6) | 64/164(39.0) | 2.21(0.99-4.94) | 0.08 |
| Boiled beef with soy sauce | 8/28(28.6) | 24/152(15.8) | 2.13(0.84-5.40) | 0.18 |
| Scrambled eggs | 10/28(35.7) | 31/150(20.7) | 2.11(0.89-5.04) | 0.18 |
aOdds ratio>2.00; CI: confidence interval.
