In 2023 consumers in Sweden were infected with Salmonella Enteritidis (SE) traced back to CA Cedergren. This domestic producer, was responsible for over 80 diagnosed cases.  Since July 2024, the Public Health Agency of Sweden has been tracking outbreaks of SE with two identified strains suggesting either regional infection or importation.  Outbreaks appear to be associated with eggs purchased from small stores and restaurants that can be attributed to distribution from infected local flocks.  Epidemiologic evidence also implicates eggs imported from Ukraine, along with Poland, a major exporter to western E.U. nations.

The introduction of contaminated eggs into the supply chain in the E.U. is complicated by the absence of a cold chain from packing to point-of-sale. Consumers also favor soft-boiled or even raw eggs and incorporate egg yolk in homemade mayonnaise and sauces with egg white as glazes.  The preference for soft eggs intensifies risk of infection despite recommendations by health authorities to thoroughly cook eggs.