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Foodborne Pathog Dis. 2010 Dec;7(12):1581-4. doi: 10.1089/fpd.2010.0631. Epub 2010 Aug 31.

Large listeriosis outbreak linked to cheese made from pasteurized milk, Germany, 2006-2007.

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Department for Infectious Disease Epidemiology, Robert Koch Institute, Berlin, Germany.


A commercial cheese (acid curd) made from pasteurized milk caused a large listeriosis outbreak in Germany from October 2006 through February 2007. The Listeria monocytogenes outbreak strain was identified in humans and in cheese samples from a patient's home and from the production plant. During the outbreak period, 189 patients were affected, which was 97% above the mean case number for the respective time period of the years 2002 to 2005. Of patients with available detailed information on cheese consumption (n=47), 70% reported to have consumed the incriminated cheese product. Recent European food safety alerts due to Listeria-contaminated cheeses more often concerned products made from pasteurized or heat-treated milk than from raw milk. The findings should be considered in prevention guidelines addressing vulnerable populations.

[Indexed for MEDLINE]

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