A prolonged genomic cluster of 20 human Listeria monocytogenes ST1607 infections has been reported. The most recent case was reported in March 2024 in Denmark.
Twenty-one cases of Listeria monocytogenes IVb sequence type ST 6 infections have been reported from the Netherlands (19 cases) and Belgium (two cases). This outbreak was identified using whole genome sequencing (WGS) analysis.