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[genetic evidence corroborates negme's hypothesis about the greater mildness of american trypanosomiasis in chile].chagas disease is present in northern and central chile. not more than 25% of infected individuals have had a pathologic condition presumably due to trypanosoma cruzi. the majority of individuals with chronic infectious chagas disease in chile are asymptomatic in contrast to what has been observed in other south american countries. historic and paleopathologic evidences suggest that this particular behavior could be explained by a genetic adaptation of chilean aborigines to t cruzi. associations ...19921342473
[chagas disease: impact of triatoma infestans control program in alto del carmen, huasco province, iii region atacama, chile].a control program of triatoma infestans has been carried out in alto del carmen, an endemic chagasic rural county in the iii region, chile. the program started in 1988 with an attack phase consisting in a masshouse spraying with residual insecticide, followed by an entomological surveillance phase with health education for community participation and vector detection in eventually reinfested houses. a yearly evaluation in 1992, 1993, 1994 and 1995 was carried out in order to determine the effect ...19969196951
[domicilliary triatomidae infestation and trypanosoma cruzi infection in region iii of atacama, chile]. 19826820289
[chagas' disease in chile. urban sectors. iii - incidence of chagas' infection in mothers and newborn infants at the hospital of copiapo (iii region, chile)]. 19836419749
[chagas' disease in chile. urban sectors. ii - prevalence of chagas' infection in blood donors at the hospital of copiapo (iii region, chile)]. 19836419748
[current human and canine seroprevalence of chagasic infection in san pedro de atacama county, ii region of antofagasta, chile, 1995].in order to assess the impact of a control program against triatoma infestans launched in 1988, based on insecticide spraying of dwellings, a serological survey for chagasic infection was carried out during 1995 in three localities from san pedro de atacama county (22 degrees 55' south lat., 68 degrees 12' west long.), ii region of antofagasta in northern chile. blood samples from 531 children and adolescents and 65 dogs were subjected to elisa test and indirect immunofluorescent test for chagas ...19969302779
[evaluation of vectors of chagas' disease eradication programs in chile by serological study of children under 10 years old].chagas' disease is a parasitic zoonosis with high prevalence in chile. it is distributed in rural and periurban section in the northern most seven out of thirteen regions in which the country is divided, and affects about 142,000 individuals dispersed in most of the 165 counties sited in the chagasic zone. triatoma infestans--intradomiciliary species--is the main and practically exclusive vector of trypanosoma cruzi. diverse tools may be utilized in order to interrupt the domestic cycle of trans ...19969302780
[epidemiological status of chagas disease in the endemic area from region ii of antofagasta].during 1997 a seroepidemiological study on chagas' disease was carried out in 18 localities of three provinces (tocopilla, el loa and antofagasta) of region ii (20 degrees 56'-26 degrees south lat.; 70 degrees 38'-67 degrees west long.), in order to assess the impact of the control program against triatoma infestans launched in 1988, based on insecticide spraying of dwellings. by means of elisa and an indirect hemagglutination test for chagas' disease blood samples from 1,034 children under 10 y ...199910488587
paleoparasitology of chagas disease revaled by infected tissues from chilean mummies.mummified tissues were sampled from bodies stored at the museo arqueologico de san pedro de atacama, northern chile, dated from 2000 years bp-1400 ad, and trypanosoma cruzi dna was recovered using polymerase chain reaction (pcr) methodology. amplification of the conserved region of the minicircle molecule of t. cruzi was achieved in four of the six samples tested. amplified products corresponding to genetic fragments of the parasite were tested by hybridization experiments with positive results ...200010708009
[clinical study of measure of parasitemia in patients infected with trypanosoma cruzi in atacama, chile].trypanosoma cruzi infection is endemic in northern/central chile.200314558242
geographical structuring of trypanosoma cruzi populations from chilean triatoma infestans triatomines and their genetic relationship with other latino american counterparts.in order to obtain more information about the population structure of chilean trypanosoma cruzi, and their genetic relationship with other latino american counterparts, we performed the study of t. cruzi samples detected in the midgut content of triatoma infestans insects from three endemic regions of chile. the genetic characteristics of these samples were analysed using microsatellite markers and pcr conditions that allow the detection of predominant t. cruzi clones directly in triatomine midg ...201122325822
from ancient to contemporary molecular eco-epidemiology of chagas disease in the americas.one of the best-studied populations with regard to chagas disease is from the coastal area of northern chile at the foot of the western andean slopes. the extremely arid climate here generates rapid, spontaneous desiccation of buried bodies, arresting the decay process. the absence of rainfall then preserves these dried bodies (mummies) for millennia. the aim of the present study was to perform the first molecular paleoepidemiological study on a set of 43 mummified human remains from the atacama ...201424675555
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