Sweden – Salmonella sickens more than 50 in Sweden

Food Safety News

More than 50 people have fallen ill in a national outbreak of Salmonella in Sweden with the source yet to be identified.

A total of 54 confirmed cases of Salmonella Typhimurium have been reported from 20 different regions in the country from Sept. 17 to Oct. 5.

Patients are aged between 8 and 86 years old; 31 of them are women.

Cases have been connected by whole genome sequencing of patient samples. This means they are suspected of having been infected by a common source, according to the Public Health Agency of Sweden (Folkhälsomyndigheten).

Local infection control units, the Swedish Food Agency (Livsmedelsverket) and Folkhälsomyndigheten are investigating the outbreak to identify the source of infection, which is suspected to be a food with wide distribution in Sweden.

Patient interviews to compile information about what those sick have eaten before falling ill are ongoing. Answers will be used to form a hypotheses about the source and compared to what people in a control group that are not part of the outbreak have eaten.

The incident doesn’t appear to be connected to a Salmonella Typhimurium outbreak that is ongoing in Denmark. Officials believe the outbreak in Sweden is caused by a different source because the strains don’t cluster.

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