title: [Ecoepidemiology of Ascaris lumbricoides in an endemic area and its relation with blood groups].
abstract: 185 children 1 to 14 years old living in the suburb of San Rafael (Zulia State, Venezuela) were selected for this study with the following results: Eggs of Ascaris lumbricoides in the stool samples before administration of a drug to the children and the worms recovered after drug, induced expulsion, showed a high aggregation (K = 0.115 and K = 0.122, respectively); the aggregation of the recovered worms was more intense in girls (K = 0.083), than in boys (K = 0.220); among the blood groups, A. lumbricoides resulted highly prevalent (100%) and less overdispersed in group "AB" (K = 1.26; n = 5), while in the other blood groups the spatial aggregation pattern was strongly overdispersed (A = 0.159; B = 0.133 and O = 0.210); individuals of the blood group "B", make the greatest contribution to environmental contamination, because they presented the greatest values for the abundance and a more intense overdispersion.
authors.affiliation: Laboratorio de Parasitología, Instituto de Investigaciones Veterinarias, CENIAP-FONAIAP, Aragua, Venezuela.
authors.forename: G A
authors.initials: GA
authors.lastname: Morales
authors.forename: L A
authors.initials: LA
authors.lastname: Pino
authors.forename: G
authors.initials: G
authors.lastname: Chourio-Lozano
mesh_terms: D000293:Adolescent; D000818:Animals; D001196:Ascariasis / Q000453:epidemiology*; D017164:Ascaris lumbricoides; D001789:Blood Group Antigens; D002648:Child; D002675:Child, Preschool; D019353:Endemic Diseases; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D014687:Venezuela
chemical_list: D001789:Blood Group Antigens
vernacular_title: Ecoepidemiologia de Ascaris lumbricoides en una zona endemica y su relacion con los groupos sanguineos.