virulence characterization and genotypic analyses of listeria monocytogenes isolates from food and processing environments in eastern this study, twenty l. monocytogenes food-related isolates collected from eastern china zhejiang province were compared by in vivo ld50 assays as well as in vitro cytopathic plaque forming assay. nineteen l. monocytogenes isolates (19/20) were as virulent as reference strain 10403s, while the isolate m4 had low pathogenicity. the unique isolate m4 fell into lineage iii based on the partial nucleotide variations of acta, while the other isolates belonged to the more common lineages i and ii. l. ...200818045718
genome sequence of the nonpathogenic listeria monocytogenes serovar 4a strain m7.this report presents the complete and annotated genome sequence of the naturally nonpathogenic listeria monocytogenes serovar 4a strain m7, isolated from cow's milk in zhejiang province, china.201121742872
prevalence and virulence characterization of listeria monocytogenes in chilled pork in zhejiang province, china.listeria monocytogenes is an important foodborne pathogen that can grow in refrigeration temperature and causes severe human infections. the aims of this work were to estimate the prevalence of l. monocytogenes in chilled pork in zhejiang, china and to examine the virulence features of the isolates. of 331 meat samples, 196 were positive for listeria spp., with l. innocua accounting for 54.4%, l. monocytogenes for 11.5%, and l. welshimeri for 4.2%. the most prevalent l. monocytogenes serotype wa ...201626393675
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