Prevalence, detection and control of Cryptosporidium parvum in food.
The role of Cryptosporidium parvum as a foodborne pathogen has not been well documented.
Epidemiological features of this parasitic protozoon lead to the assumption that the incidence of cryptosporidiosis due to contaminated food is under-estimated.
The high prevalence of C. parvum among dairy herds has increased the spread of oocysts in the farm environment, and their potential presence in raw milk and other raw foods.
In October 1993, the first well-documented foodborne outbreak was reported in Maine, USA, and was caused by contaminated hand-pressed apple cider.
Although various cases of cryptosporidiosis among humans have pointed to raw milk and other raw foods as possible sources of infection, a conclusive demonstration of foodborne cryptosporidiosis has rarely been established.
The limited numbers of oocysts in the suspected samples and the lack of sensitive detection methods adapted for oocyst detection in food contribute to this under-reporting.
This review paper discusses various aspects of Cryptosporidium spp. and cryptosporidiosis, including the routes of transmission, the control of oocysts in food, and the available detection methods.
The polymerase chain reaction (PCR) combined with DNA probe hybridization is a promising detection method.
Recent knowledge on the molecular biology of the parasite for the development of new PCR assays and their potential use in the detection of C. parvum in food are described.
Mots-clés Pascal : Cryptosporidiose, Protozoose, Parasitose, Infection, Homme, Contrôle microbiologique, Détection, Réaction chaîne polymérase, Article synthèse, Produit alimentaire, Contamination biologique, Cryptosporidium parvum, Sporozoa, Protozoa, Pathogène, Epidémiologie, Prévention
Mots-clés Pascal anglais : Cryptosporidiosis, Protozoal disease, Parasitosis, Infection, Human, Microbiological testing, Detection, Polymerase chain reaction, Review, Foodstuff, Biological contamination, Cryptosporidium parvum, Sporozoa, Protozoa, Pathogenic, Epidemiology, Prevention
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0442518
Code Inist : 002A35D. Création : 10/04/1997.