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Listeriosis in Scandinavia

Rates of listeriosis have been increasing in Scandinavia for over 20 years, and are currrently 2- to 5-fold those reported in the United States – see graph (black arrow = United States) [1-3]


1. Berger SA. Infectious Diseases of Sweden, 2014. 484 pages, 137 graphs, 2,231 references Gideon e-books,
2. Berger SA. Listeriosis: Global Status, 2014. 101 pages, 105 graphs, 746 references. Gideon e-books,
3. Gideon graph tool –

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2 Responses to “Listeriosis in Scandinavia”

  1. mike ahuja Says:

    what is the reasoning for the increase in listeriosis in Scandinavia, as opposed to the United States…what about other regions of the world?

  2. Dr. Stephen Berger Says:

    Possible explanations might include more efficient surveillance / reporting by Scandinavian countries, diet (high intake of fish in Scandinavia), ambient temperature which supports survival of Listeria in the environment. We do in fact have rates-per-year data for 165 countries (none published by region) in our database – so a detailed analysis by region might be too time-consuming. Let me know if you would like graphs for specific countries.