Despite a drop in confirmed cases of Salmonella Enteritidis (SE) in 2019, 18 nations in the EU were affected with peaks occurring during the summer months of 2016, 2017, and 2018. Prior to February 2017, 385 confirmed cases and 413 probable cases were identified. From February 2017 through January 2020, 15 nations reported 656 confirmed cases and 202 probable cases.

Traceback disclosed that the infection emanated from farms associated with a cooperative in Poland. Although control measures were imposed in 2017, efficacy has been less than ideal and contamination persists, although at a lower level.