AustralieFrV1, Main, Exploration, bibRecord, 00C120

Survival and recovery of viable but noncultivable forms of Campylobacter in aqueous microcosm

Identifieur interne : 00C120 ( Main/Exploration ); précédent : 00C119; suivant : 00C121

Survival and recovery of viable but noncultivable forms of Campylobacter in aqueous microcosm

Auteurs : R. Talibart [France] ; M. Denis [France] ; A. Castillo [France] ; J. M. Cappelier [France] ; G. Ermel [France]

Source :

International journal of food microbiology [ 0168-1605 ] ; 2000.

RBID : Pascal:00-0271381

Descripteurs français

Pascal (Inist)
- Campylobacter, Pathogène, Survie, Persistance, Viabilité, Récupération, Volaille, Oeuf, Milieu aqueux, Etat viable non cultivable.
Wicri :
- topic : Volaille.

English descriptors

KwdEn :
- Aqueous medium, Campylobacter, Egg, Pathogenic, Persistence, Poultry, Recovery, Survival, Viability.

Abstract

Previous studies suggesting that the persistence of thermotolerant Campylobacter in water, especially as a viable but non-cultivable form (VNC), was involved in human campylobacteriosis, the capacities of survival and resuscitation of a significant collection of 85 strains in aqueous microcosms were investigated. Two-thirds of these strains (68%) were not detectable on agar medium after a stay of 14-21 days, whereas 21% reached this state before 14 days and 11% were non-cultivable after a stay of 21 days. Some strains remained cultivable after 35 days in a shaken aqueous microcosm and beyond 60 days without shaking. After 30 days, 51% of the non-detectable strains by conventional culture were recovered after injection in 9-day fertilised chicken eggs. A kinetic study showed that the age of the viable but non-cultivable forms and characteristics of the strains could explain the variations of recovery. These results suggest that viable but non-cultivable forms of Campylobacter could be a potential risk of colonisation of human or animals and that an embryonic factor seems to be essential to allow resuscitation.

Affiliations:

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to stream PascalFrancis, to step Curation: 000240
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to stream Main, to step Curation: 00C120

Le document en format XML

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<term>Persistance</term>
<term>Viabilité</term>
<term>Récupération</term>
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<front><div type="abstract" xml:lang="en">Previous studies suggesting that the persistence of thermotolerant Campylobacter in water, especially as a viable but non-cultivable form (VNC), was involved in human campylobacteriosis, the capacities of survival and resuscitation of a significant collection of 85 strains in aqueous microcosms were investigated. Two-thirds of these strains (68%) were not detectable on agar medium after a stay of 14-21 days, whereas 21% reached this state before 14 days and 11% were non-cultivable after a stay of 21 days. Some strains remained cultivable after 35 days in a shaken aqueous microcosm and beyond 60 days without shaking. After 30 days, 51% of the non-detectable strains by conventional culture were recovered after injection in 9-day fertilised chicken eggs. A kinetic study showed that the age of the viable but non-cultivable forms and characteristics of the strains could explain the variations of recovery. These results suggest that viable but non-cultivable forms of Campylobacter could be a potential risk of colonisation of human or animals and that an embryonic factor seems to be essential to allow resuscitation.</div>
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Survival and recovery of viable but noncultivable forms of Campylobacter in aqueous microcosm

Survival and recovery of viable but noncultivable forms of Campylobacter in aqueous microcosm

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri