Ngo Chung Thuy, Patin A., Truong Thi Giang, Pham Thi Ngoc, Tran Thi Hanh, Le Bas Cédric.
2008. Occurrence of listeria monocytogenes in retail pork meat in Vietnam.
In : Environmental, health and socio-economic : Risks associated with livestock intensification : Proceedings of the PRISE Scientific Committee, Hanoi, Vietnam, 4th December 2008
Résumé : The aim of this study was to evaluate the occurrence of L. monocytogenes in refrigerated minced pork meat sold in Hanoi retail shops and supermarkets. Among 134 samples, 34.3% were found positive for L. monocytogenes and 71.6% for Listeria app. A significant difference was found between the supermarkets tested (p<0.06) and between the slaughterhouses supplying the retailers tested. Among the 47 isolates serotyped, 1/2b (n=42, 89.4%), 3b (n=3, 6.4%) and 4a (n=2, 4.3%) were identified. The results show that the incidence of L. monocytogenes in this study is high compared to most of the literature, although it is admitted that minced raw pork meat is known to be at risk and few studies reported similar incidence. Serotypes 1/2a and 1/2b are responsible of sporadic listeriosis cases, so that pork in Vietnam can represent a potential risk for sporadic cases, through cross-contaminations, and especially because some traditional Vietnamese products are made of raw pork meat. Our results confirmed that both slaughtering and processing/packaging are the most probable sources of contamination with L. monocytogenes. It should be further investigated which step is the main contributor to the final contamination of raw meat.
Classification Agris : L72 - Organismes nuisibles des animaux
Q03 - Contamination et toxicologie alimentaires
Auteurs et affiliations
- Ngo Chung Thuy, National Institute of Veterinary Research (VNM)
- Patin A., IUT d'Amiens (FRA)
- Truong Thi Giang, IUT d'Amiens (FRA)
- Pham Thi Ngoc, National Institute of Veterinary Research (VNM)
- Tran Thi Hanh, National Institute of Veterinary Research (VNM)
- Le Bas Cédric, CIRAD-ES-UPR Systèmes d'élevage (VNM)
Source : Cirad - Agritrop (https://agritrop.cirad.fr/554323/)
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