| detection of chromosomal and plasmid--encoded virulence determinants in yersinia enterocolitica and other yersinia spp. isolated from food animals in greece. | the distribution of yersinia strains in animal reservoirs was examined in 835 food animals (pigs, chickens, sheep, cows) from different greek departments (attica, fthiotida, viotia and evia) over a one year period. the isolated strains were characterized with respect to the presence of chromosomal (yst) and plasmid-encoded virulence determinants (virf, yada) and their antimicrobial susceptibility was tested. in total, yersiniaspp. were obtained from 9.94% of the 835 food animals at slaughter tha ... | 2007 | 17825934 |