Résumé:
Introduction: Parasites who have a big influence on human being are those of digestive system. Protozoa and helminths are the main intestinal parasitic families. The fight against intestinal parasitosis is based on hygiene measures. The enteric intestinal protozoa represent a big risk for the reason that they produce cysts and oocysts that are extremely resistant to environmental stress. The aim of this bibliographical summary is to study the intestinal parasite carriage in several populations of different age groups, as a function of various parameters such as gender, modalities of parasitism, etc., but also to identify the parasites responsible of these conditions and classify them according to the pathogenicity’s degree. To finally be able to offer recommendations.
Tools and methods: If we sought to select three international articles intended for the study of the prevalence of intestinal parasitosis among populations, it is mainly because they evaluated the determining factors of these parasitosis and their evolution, but also, they have adopted the parasitological examination of the stool that it is about the direct examination as well as the examination after concentration, and which allows a better development of the various parasitic forms.
Results and discussing: The results of the assessment were superior and reflected the low level of food and sanitary hygiene, and climatic factors that promotes the development of life cycles of these parasites. Protozoa predominate in these studies all such as Giardia, Entamoeba histolytica, Cryptosporidium, and Blastocystis hominis where they are found in cystic, vacuolic, and oocysts, alone or in combination. The other parameters studied varied from study to another. Finally, recommendations have been proposed to move towards better means of prevention and treatment.