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Volume 18, Number 9—September 2012
Dispatch
Yersinia enterocolitica Outbreak Associated with Ready-to-Eat Salad Mix, Norway, 2011
Emily MacDonald
, Berit Tafjord Heier, Karin Nygård, Torunn Stalheim, Kofitsyo S. Cudjoe, Taran Skjerdal, Astrid Louise Wester, Bjørn-Arne Lindstedt, Trine-Lise Stavnes, and Line Vold
, Berit Tafjord Heier, Karin Nygård, Torunn Stalheim, Kofitsyo S. Cudjoe, Taran Skjerdal, Astrid Louise Wester, Bjørn-Arne Lindstedt, Trine-Lise Stavnes, and Line Vold
Table
Results from univariate conditional logistic regression analyses of a Yersinia enterocolitica outbreak, Norway, February–April 2011
| Exposure | No. cases, n = 9 | No. controls, n = 26* | Matched odds ratio† (95% CI) | p value |
|---|---|---|---|---|
| Ready-to-eat salad mix | 6 | 3 | 13.7 (1.6–116.3) | 0.02 |
| Diced ham, ham pieces | 5 | 3 | 6.3 (1.2–32.9) | 0.03 |
| Chicken breast | 8 | 9 | 10.0 (1.2–83.6) | 0.03 |
| Arugula | 7 | 8 | 9.8 (1.2–83.6) | 0.04 |
| Pork chops | 4 | 3 | 8.4 (0.9–78.6) | 0.06 |
| Bean sprouts | 3 | 1 | 8.2 (0.8–79.3) | 0.07 |
| Sugar peas | 6 | 8 | 3.7 (0.9–16.1) | 0.08 |
| Iceberg lettuce | 8 | 13 | 6.6 (0.8–57.5) | 0.09 |
*n = 25 for ready-to-eat salad mix.
- Page created: August 17, 2012
- Page last updated: August 17, 2012
- Page last reviewed: August 17, 2012
- Centers for Disease Control and Prevention,
-
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
Office of the Director (OD)