Large ongoing outbreak of infection with Salmonella Typhimurium U292 in Denmark, February-July 2008

S Ethelberg; A Wingstrand; T Jensen; G Sørensen; L Muller; E M Nielsen; K Mølbak

doi:10.2807/ese.13.28.18923-en

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Large ongoing outbreak of infection with Salmonella Typhimurium U292 in Denmark, February-July 2008
S Ethelberg^1,2 , A Wingstrand³ , T Jensen⁴ , G Sørensen³ , L Muller¹ , E M Nielsen² , K Mølbak¹
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Affiliations: ¹ Department of Epidemiology, Statens Serum Institut, Copenhagen, Denmark ² Department of Bacteriology, Mycology and Parasitology, Statens Serum Institut, Copenhagen, Denmark ³ National Food Institute, Technical University, Copenhagen, Denmark ⁴ Danish Veterinary and Food Administration, Copenhagen, Denmark

Correspondence:
S Ethelberg
SET ssi.dk
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Citation style for this article: Ethelberg S, Wingstrand A, Jensen T, Sørensen G, Muller L, Nielsen E M, Mølbak K. Large ongoing outbreak of infection with Salmonella Typhimurium U292 in Denmark, February-July 2008. Euro Surveill. 2008;13(28):pii=18923. https://doi.org/10.2807/ese.13.28.18923-en Received: 07 Jul 2008

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Abstract

Denmark is currently experiencing an unusually large outbreak of gastrointestinal illness caused by Salmonella Typhimurium, phage type U292. The outbreak was discovered in early April by molecular typing (MLVA typing) of S. Typhimurium isolates at the Statens Serum Institut (SSI); the first patients reported onset on illness in February, but the number of reported cases has been particularly high in May and June (Figure 1). There are currently (as of 7 July) 366 confirmed cases, effectively making this the largest outbreak of salmonella infections in Denmark since 1993 [1].