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Isolats de Campylobacter jejuni cliniques et dérivés de volaille : survie à basse température (4 °C).

Survival of clinical and poultry-derived isolates of Campylobacter jejuni at a low temperature (4 °C).

Auteurs : CHAN K. F., TRAN H. L., KANENAKA R. Y., et al.

Type d'article : Article

Résumé

Campylobacter jejuni is a leading cause of bacterial gastroenteritis in humans, and contamination of poultry has been implicated. The bacteria are fastidious in terms of their temperature requirements, being unable to grow below about 31 °C, but have been found to be physiologically active at lower temperatures and to tolerate exposure to low temperatures. In this study, 19 field isolates of C. jejuni were studied for their ability to tolerate prolonged exposure to low temperature (4 °C). Clinical isolates tended to be significantly more likely to remain viable following cold exposure than poultry-derived strains. In contrast, the relative degree of tolerance of the bacteria to freezing at -20 °C and freeze-thawing was strain specific but independent of strain source (poultry versus clinical) and degree of cold (4 °C) tolerance.

Détails

  • Titre original : Survival of clinical and poultry-derived isolates of Campylobacter jejuni at a low temperature (4 °C).
  • Identifiant de la fiche : 2002-2505
  • Langues : Anglais
  • Source : Appl. environ. Microbiol. - vol. 67 - n. 9
  • Date d'édition : 09/2001

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