title: Seroprevalence of human Trypanosoma cruzi infection in diferent geografic zones of Chiapas, Mexico.
abstract: A serologic survey was carried out in four different geographic zones of Chiapas, Mexico. A total of 1,333 samples were collected from residents of thirteen communities located on the Coast, Central Mountain, Lacandon Forest and a zone called Mesochiapas. One hundred and fifty one seropositive individuals (11.3%) were identified. Human Trypanosoma cruzi infection was influenced by geography. In the Lacandon Forest and Central Mountains there was a higher seroprevalence 32.1 and 13.8% respectively, than on the coast (1.2%). In Mesochiapas there were no seropositive individuals among the 137 persons tested. An active transmission is probably continuing because seropositive cases (13.8%) were detected in children under 10 years of age. The vector recognized on the Coast was Triatoma dimidiata while in the Lacandon Forest it was Rhodnius prolixus.
authors.affiliation: Facultad de Ciencias Quimicas, UNACH, México.
authors.forename: M A
authors.initials: MA
authors.lastname: Mazariego-Arana
authors.forename: V M
authors.initials: VM
authors.lastname: Monteón
authors.forename: M A
authors.initials: MA
authors.lastname: Ballinas-Verdugo
authors.forename: N
authors.initials: N
authors.lastname: Hernández-Becerril
authors.forename: R
authors.initials: R
authors.lastname: Alejandre-Aguilar
authors.forename: P A
authors.initials: PA
authors.lastname: Reyes
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D000913:Antibodies, Protozoan / Q000097:blood*; D014355:Chagas Disease / Q000097:blood* / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D016036:Seroepidemiologic Studies; D014349:Trypanosoma cruzi / Q000276:immunology*
chemical_list: D000913:Antibodies, Protozoan