EPIDEMIOLOGÍA DE HIMENOLEPIOSIS Y OTRAS PARASITOSIS INTESTINALES EN UNA COMUNIDAD SUBURBANA DE ESCUQUE, TRUJILLO-VENEZUELA

Abstract

The intestinal parasitosis are neglected diseases of developing countries in sub-urban, rural, indigenous and marginalized communities, disadvantaged by qualified medical care. In Venezuela is estimated a 7 % of prevalence for Hymenolepis nana. This epidemiological study of prevalence in the Fray Ignacio Alvarez sector, Escuque-Trujillo, was designed to determine the occurrence of intestinal parasitosis, of Hymenolepis nana, correlate epidemiological variables (Graffar Mendez Castellanos) with the I intestinal parasitosis and assess the reliability Kato Katz method, using as the gold standard method Formol-Triton-ether, in finding Hymenolepis nana. It were surveyed 319 people and conducted 224 Kato Katz and 224 Formol-Triton-ether. The sanitary-hygienic conditions and gastrointestinal symptoms consistent with himenolepiosis were common in the community, but only 2.2 % (5 / 224) were positive for Formol-Triton-ether. The 50.2 % of individuals surveyed were in relative poverty. The prevalence of risk to be infected by any parasite was related to IV and V socioeconomic status (prevalence of risk = 11.03, 95 %, P = 0.012), with the highest rate of Graffar (prevalence of risk = 21.04, 95 %, P = 0.000) and with the least education of the mother (prevalence of risk = 26.32, 95 %, P = 0012). The Graffar Méndez Castellanos method is reliable to estimate the probability of being infected individuals with intestinal parasitosis; by contrast, Kato-Katz method is unreliable for determining neither Himenolepis nana nor other Cestoda and consequently for prevalence studies of intestinal parasite diseases must be employed other coprology concentration techniques.Key words: Hymenolepis nana, Intestinal parasites, Formalin triton ether method.