 - Participants having a copro-parasitoscopy test scatology at least 1 with a series of 3 qualitative and quantitative andor search of live amoeba, that comes out positive for one or more of the following parasites: Ascaris lumbricoides, Enterobius vermicularis, Trichuris trichuria, Taenia solium, Necator americanus, Ancylostoma duodenale and Trophozoites of Entamoeba histolytica 