論文

査読有り 国際誌
2010年9月

Prevalence of Listeria monocytogenes in retailed meat in the Tokyo metropolitan area.

Journal of food protection
  • Yoshitsugu Ochiai
  • ,
  • Fumiya Yamada
  • ,
  • Otgonchimeg Batmunkh
  • ,
  • Mariko Mochizuki
  • ,
  • Takashi Takano
  • ,
  • Ryo Hondo
  • ,
  • Fukiko Ueda

73
9
開始ページ
1688
終了ページ
93
記述言語
英語
掲載種別
DOI
10.4315/0362-028x-73.9.1688

This study was conducted to determine the prevalence of Listeria monocytogenes in retailed meats, comprising beef, chicken, and pork, in the Tokyo metropolitan area. A total of 379 samples of retailed meat were collected from 1998 to 2003, most of which were obtained by simultaneously purchasing the three classes of meat from a shop and then making another simultaneous purchase of meat from the same shop a few weeks later. The prevalence of L. monocytogenes was 28.0%, and the serotypes isolated were mainly 1/2a, 1/2b, 1/2c, and 4b. Comparison of the prevalence of each serotype among the classes of meat showed a predominant distribution of serotypes 1/2a, 1/2b, and 4b in chicken, while serotype 1/2c was dominant in pork. A total of nine cases considered to be due to persistence and/or cross-contamination were found. Most of the strains involved in persistence and/or cross-contamination were of serotypes 1/2c or 4b. These results suggest that contamination in retailed meat in Japan is at almost the same level as in other countries and that chicken has the highest potential as a source of contamination and infection. In addition, we suggest that the ecological niche of serotype 1/2c is distinct from those of 1/2a, 1/2b, and 4b, which may explain why human hosts have less opportunity to be exposed to serotype 1/2c and why there is a lower rate of isolation of this serotype from cases of human listeriosis.

リンク情報
DOI
https://doi.org/10.4315/0362-028x-73.9.1688
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/20828477
ID情報
  • DOI : 10.4315/0362-028x-73.9.1688
  • ISSN : 0362-028X
  • PubMed ID : 20828477

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