The food category
containing highest L. monocytogenes prevalence was RTE lightly salted fish products with the prevalence
of 32%. Only one (0.3%) RTE food sample exceeded the 100 CFU/g food safety criterion set out in the EU
Regulation 2073/2005. Pulsed-field gel electrophoresis (PFGE) characterization of the isolates showed an
overall similarity higher than 70%, and nine clusters based on 100% similarity were revealed.