Prevalence of pathogenic Yersinia enterocolitica in food samples at retail level in Finland

M. Fredriksson-Ahomaa, Ulrike Lyhs, T. Korte, H. Korkeala

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Prevalence of pathogenic Yersinia enterocolitica was studied in pork, fish, chicken and lettuce at retail level with the PCR and culture methods. A high prevalence of pathogenic Y. enterocolitica was detected in pig tongues, hearts and kidneys with both methods. Three out of 101 lettuce samples were positive with only the PCR method. All fish and chicken samples were negative with both methods. Some nonpathogenic Y. enterocolitica isolates were recovered from fish, chicken and lettuce samples. The PCR method was clearly the more sensitive method, even though false-negative results were also obtained. Pathogenic, yadA-positive isolates were recovered after selective enrichment. All of these isolates belonged to bioserotype 4.03, but all isolates of this type were not yadA-positive. These results show that raw pork is an important source of pathogenic Y. enterocolitica at retail level in Finland.
Original languageEnglish
JournalArchiv fuer Lebensmittelhygiene
Volume52
Issue number3
Pages (from-to)66-68
ISSN0003-925X
Publication statusPublished - 2001
Externally publishedYes

Keywords

  • Food Science
  • Chemistry (miscellaneous)
  • Health, Toxicology and Mutagenesis
  • Toxicology
  • Agriculture, Biology and Environmental Sciences
  • CHEMISTRY,
  • FOOD
  • TOXICOLOGY
  • NORWEGIAN PORK PRODUCTS
  • MEAT-PRODUCTS
  • DNA
  • PCR
  • O-3
  • FINLAND
  • FOOD SAFETY
  • FOOD SAFETY ANIMAL FOODS
  • FOODS
  • OFFAL
  • PATHOGENICITY
  • SWINE
  • YERSINIA
  • YERSINIA ENTEROCOLITICA
  • Meat, poultry and game
  • Porcine meats and products

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