Infectious Diseases 2019

Infectious Diseases 2019

Salmonella occurring at low levels in the Finnish food chain

17 May, 2019

The potential origins of food-based salmonella infections in consumers were assessed based on information from between 2008 and 2015. During this time, the annual total number of infections was reduced by half from about 3,000. The number of infections acquired from Finland varied from approximately 300 to 400 cases. The studied food categories included chicken and turkey meat, beef and pork. Finnish and imported meat were examined as separate categories. Based on the research material, about two thirds of annual human salmonella infections of Finnish origin represent subtypes of salmonella that were also identified in the studied food categories. As evaluated by using the model, three subtypes of salmonella with the relatively highest risk levels were Enteritidis 8, Newport and Enteritidis 1b. Turkey meat imported to Finland showed the relatively highest value as a source of infection.the largest relative proportion (eight‐year average) of human salmonellosis cases was attributed to domestic beef and the second largest to imported turkey. The salmonella subtype Newport (the second most prevalent of the human subtypes that were also detected in the sources), with the largest value for the subtype‐specific parameters, was uniquely isolated from imported turkey, and the subtypes Typhimurium 1 and Typhimurium NST (respectively, the most prevalent and third most prevalent of the human subtypes that were also detected in the sources) were estimated to be relatively common in domestic beef.

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