laboratory investigation of virulence among strains of yersinia enterocolitica and related species isolated from pigs and pork products.eighty strains of yersinia enterocolitica and related species isolated from slaughtered pigs and pork products were tested for possession of virulence-associated phenotypes by employing 12 in vivo and in vitro assays. the isolates could be broadly divided into two groups: (i) strains belonging to pathogenic bioserotypes of y. enterocolitica that displayed virulence-associated characteristics in most or all assays and (ii) strains belonging to y. enterocolitica biotype 1a and to related species t ...19921521193
yersiniosis in saskatchewan. 19854084886
family outbreak of yersiniosis.yersinia enterocolitica biotype 1, serotype o:21 was isolated from feces or rectal washings of three members of one family in northwestern saskatchewan. the three isolates gave positive pathogenicity tests in guinea pigs with cultures grown at 22 degrees c as inoculum. all three cases showed clinical symptoms consistent with yersiniosis. all three cases had symptoms of diarrhea and abdominal pain, and two cases had recorded fever. in two cases, appendicitis was initially suspect. one case with i ...19827153310
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