Isolamento di Listeria spp. in carni fresche prodotte in Campania.

«Isolatìon of Listeria spp. from fresh meats in Campania». In order to furtherly defìne the epidemiology of the genus Listeria in Campania, the Authors report the results of a survey for the isolation of the microrganismi from 219 samples of fresh meats in Campania. Using a serial selective enrichment procedure the Authors isolated strains belonging to the genus Listeria from 30.1% of the examined specimens. The highest levels of positivity were found in poultry meats (43.4%), followed by pork (32.8%) and beef samples (21.2%). Listeria monocytogenes was the most frequent species, isolated from 26.4% of poultry meats, 16.4% of pork meats and 13.1% of beef meats. The remarkable isolation percentage combined with the high frequency of serotype 4 found in the 7.3% of samples, confim the need for an intensive epidemiological surveillance on the spreading of Listeria spp. and for proper preventive measures.