Genetic and virulence characterization of Streptococcus suis type 2 isolates from swine in the provinces of Zhejiang and Henan, China.

This study was aimed to examine the genetic characteristics of 44 Streptococcus suis type 2 (SS2) isolates and the virulence attributes of 23 representative isolates. Multilocus sequence typing revealed five sequence types (ST1, ST7, ST28, ST86, and ST162) with 19 isolates assigned to ST7 (43.2%), 14 to ST1 (31.

lmo0038 is involved in acid and heat stress responses and specific for Listeria monocytogenes lineages I and II, and Listeria ivanovii.

The genus Listeria comprises two pathogenic species, L. monocytogenes and L. ivanovii, as well as four nonpathogenic species, L.

Virulence characterization and genotypic analyses of Listeria monocytogenes isolates from food and processing environments in eastern China.

In 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.