Changes in Salmonella prevalence in pork cuttings in supermarkets and butchers' shops in Denmark from 2002 to 2006

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2009-01-01
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Hansen, T.
Christensen, B.
Aabo, Søren
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International Conference on the Epidemiology and Control of Biological, Chemical and Physical Hazards in Pigs and Pork
Iowa State University Conferences and Symposia

The SafePork conference series began in 1996 to bring together international researchers, industry, and government agencies to discuss current Salmonella research and identify research needs pertaining to both pig and pork production. In subsequent years topics of research presented at these conferences expanded to include other chemical and biological hazards to pig and pork production.

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The prevalence of Salmonella in fresh pork cuttings and the distribution of suppliers of these products to retailers in Denmark were investigated in 2002 and again in 2006. Samples were taken at retail level and the supplying slaughterhouses and cutting plants were identified. In 2002, a total of 1,025 and 3,473 samples were taken from butcher's shops and supermarkets, respectively. The corresponding numbers in 2006 were 259 from butchers' shops and 628 from supermarkets. All samples were tested qualitatively for Salmonella. For the positive samples the concentration was detennined using a semi-quantitative method. In 2002, 1.2% samples were Salmonella positive. Samples taken from butcher's shops accounted for 35% of the positive samples corresponding to a prevalence of 1.8% of Salmonella in fresh pork cuttings from this type of retailer. The corresponding prevalence for samples taken from supermarkets was 1.0%. In 2006, the prevalence in pork cuttings had increased to 4.2% and for meat bought in butchers' shops and supermarkets the prevalence was 8.1% and 2.6%, respectively. Hence, increases around 3- to 5-fold were found. In the same time period there have been no comparable increases in the Salmonella prevalence in the Danish slaughterhouses. Possible explanations for this will be discussed.

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Thu Jan 01 00:00:00 UTC 2009