Emerging Infectious Disease ISSN: 1080-6059

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

Author affiliations: Norwegian Institute of Public Health, Oslo, Norway (E. MacDonald, B.T. Heier, K. Nygård, A.L. Wester, B.-A. Lindstedt, T.-L. Stavnes, L. Vold); Norwegian Food Safety Authority, Oslo (T. Stalheim); and Norwegian Veterinary Institute, Oslo (K.S. Cudjoe, T. Skjerdal)

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Figure 2

Week of symptom onset or positive test result for 21 persons with Yersinia enterocolitica O:9 infection, Norway, 2011. Dark gray, date of symptom onset for 17 case-patients; light gray, date of positive test result for 4 case-patients for whom the date of symptom onset was not available.

Figure 2. . Week of symptom onset or positive test result for 21 persons with Yersinia enterocolitica O:9 infection, Norway, 2011. Dark gray, date of symptom onset for 17 case-patients; light gray, date of positive test result for 4 case-patients for whom the date of symptom onset was not available.

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