Salmonella — Worldwide/Unknown
Background: _Salmonella_ spp. are a major cause of food-borne outbreaks in Europe. We investigated a large multi-country outbreak of _Salmonella enterica_ serotype Enteritidis in the EU and European Economic Area (EEA).
Methods: A confirmed case was defined as a laboratory-confirmed infection with the outbreak strains of _S._ Enteritidis based on whole-genome sequencing (WGS), occurring between 1 May 2015 and 31 Oct 2018. A probable case was defined as laboratory-confirmed infection with