Abstract：To find out the pollution status and epidemic character in delicatessen foods contaminated with Listeria monocytogenes in order to ascertain the critical control points (CCP), 883 pieces of samples taken from the delicatessen foods in markets and cooked foods in restaurants and hotels, product contact surface, such as counters and iceboxes and chopping blocks from processing and selling sites as well as the rooms for cocked foods in restaurants and hotels were collected to isolate L.monocytogenes.It was found that the rates of contamination with L.moncytogenes in delicatessen foods and in cooked foods in restaurants and hotels were 13.06% and 1.02% respectively,with a special significant difference in the prevalence (P<0.01). Meanwhile, the rates of contamination in fresh products, in processing and selling appliances were 3%, 22.22% and 11.02% respectively, and nopositive isolate was detected from samples taken from environments and appliances in the cooked food rooms in restaurants and hotels, also with a significant difference between this prevalence (P<0.05). It is evident that the prevalence of L.monocytogenes contamination in delicatessen foods is higher than that in the cooked foods in restaurants and hotels. It is significantly affected by the selling environments.Therefore, the CCP should direct on the establishment of relatively closed selling rooms and the improvement of sterilizing measures to iceboxes for preservation of the delicatessen foods and to selling appliances.
