Isolation from food and characterization by virulence tests of Yersinia enterocolitica associated with an outbreak.
A Yersinia enterocolitica outbreak associated with "pork cheese" is described. The phosphate-sorbitol-bile method was combined with KOH pretreatment for isolation of the agent from food. The pathogenicity of the food and faecal isolates was verified with virulence tests: the calcium-dependent populations carried a 42 Mdal plasmid, showed HEp-2 penetration and disintegration and were autoagglutinable.
Public Health Station, Szeged, Hungary.
E
E
Marjai
M
M
Kálmán
I
I
Kajáry
A
A
Bélteky
M
M
Rodler
D000328:Adult; D000818:Animals; D002675:Child, Preschool; D004196:Disease Outbreaks; D005243:Feces / Q000382:microbiology; D005516:Food Microbiology; D006801:Humans; D006814:Hungary; D008460:Meat / Q000506:poisoning*; D008461:Meat Products / Q000032:analysis / Q000506:poisoning*; D051379:Mice; D008815:Mice, Inbred Strains; D014774:Virulence; D015009:Yersinia Infections / Q000453:epidemiology / Q000209:etiology / Q000382:microbiology*; D015008:Yersinia enterocolitica / Q000302:isolation & purification* / Q000472:pathogenicity