Whole genome of Listeria monocytogenes in the catering environment

Listeria monocytogenesposes a significant threat in food service environments due to its environmental robustness and pathogenicity.In this study, a total of 40 monoclonal proliferative Listeria strains were isolated,L. monocytogenes contamination across 24 catering facilities in Chengdu highlighted potential public health concerns, with a 6.43% (40/622) prevalence rate and meat processing areas as primary hotspots (13.48%, 19/141; cleaned meat: 25.0%, 6/24; cleaning pools: 20.83%, 5/24).