| chagas' disease in the amazon basin iv. host records of trypanosoma cruzi zymodemes in the states of amazonas and rondonia, brazil. | of 151 trypanosoma cruzi stocks from 117 different individual hosts collected in the states of amazonas and rondonia, 147 from 113 hosts were identified as zymodeme 1 (z1). these included t. cruzi stocks from three marsupial species, two rodent species and three triatomine species although most were from the common opossum, didelphis marsupialis. one t. cruzi stock from rhodnius robustus was identified as z1 with a z3 pgm character, one from sciurus sp. as z3 and two from monodelphis brevicaudat ... | 1984 | 6441530 |
| oral transmission of chagas disease by consumption of açaí palm fruit, brazil. | in 2006, a total of 178 cases of acute chagas disease were reported from the amazonian state of pará, brazil. eleven occurred in barcarena and were confirmed by visualization of parasites on blood smears. using cohort and case-control studies, we implicated oral transmission by consumption of açaí palm fruit. | 2009 | 19331764 |
| urban outbreak of acute chagas disease in amazon region of brazil: four-year follow-up after treatment with benznidazole. | the objective of this report is to describe treatment outcomes over a four-year period of patients with acute chagas disease in the amazon region of brazil. an outbreak of chagas disease in a low-income district of urban belém, in september 2000, affected 11 people simultaneously, indicating the likelihood of indirect, oral transmission of trypanosoma cruzi. prior to treatment, patients underwent physical and clinical tests; blood samples were processed with immunofluorescence assay (ifa) and qu ... | 2009 | 19341528 |
| tamandua tetradactyla linnaeus, 1758 (myrmecophagidae) and rhodnius robustus larrousse, 1927 (triatominae) infection focus by trypanosoma rangeli tejera, 1920 (trypanosomatidae) in attalea phalerata mart. ex spreng (arecaceae) palm tree in the brazilian amazon. | a sylvatic infection focus of trypanosoma rangeli, whose cycle involves the anteater tamandua tetradactyla and triatomine insect rhodnius robustus was observed in a pasture-dominated landscape of the rural riparian community of são tomé located along the tapajós river in the municipal district of aveiro (state of pará, brazil), the brazilian amazon region. during a field work campaign with the objective of chagas disease diagnosis in the tapajós region, an anteater and 31 triatomines were found ... | 2010 | 20619359 |
| [acute phase of chagas disease in the brazilian amazon region: study of 233 cases from pará, amapá and maranhão observed between 1988 and 2005]. | two hundred and thirty-three cases of the acute phase of chagas disease, from pará, amapá and maranhão, were observed between 1988 and 2005. one hundred and sixty were studied retrospectively from 1988 to 2002 and seventy-three were prospectively followed up from 2003 to 2005. among the cases studied, 78.5% (183/233) formed part of outbreaks, probably due to oral transmission (affecting a mean of 4 individuals), and 21.5% (50/233) were isolated cases. cases were taken to be acute if they present ... | 2008 | 19142440 |
| trypanosoma cruzi transmission cycle among wild and domestic mammals in three areas of orally transmitted chagas disease outbreaks. | we report trypanosoma cruzi infection in wild and domestic mammals from three orally acquired chagas disease outbreak areas in brazil. cachoeiro do arari (pará) displayed a panzootic scenery (positive mammals in all ecologic strata), and human cases were probably the consequence of their exposure within the sylvatic t. cruzi transmission cycle. in navegantes (santa catarina), didelphis spp. was the main reservoir host, given that 93% were infected. in redenção (ceará), monodelphis domestica and ... | 2008 | 18981516 |
| chagas's disease in the amazon basin: ii. the distribution of trypanosoma cruzi zymodemes 1 and 3 in pará state, north brazil. | in pará state, brazil, 123 trypanosoma cruzi stocks were isolated from 12 silvatic mammal species, five silvatic triatomine species and individuals with acute chagas's disease. 100 t. cruzi stocks were identified as zymodeme (z) 1, 17 as z3 and 6 as z3 with z1 asat character, but none were t. cruzi z2. z1 was predominantly isolated from arboreal mammals, especially didelphis marsupialis; z3 was mainly found in terrestrial or burrowing mammals, particularly dasypus novemcinctus and monodelphis br ... | 1981 | 7036428 |
| chagas' disease in the amazon basin: v. periurban palms as habitats of rhodnius robustus and rhodnius pictipes--triatomine vectors of chagas' disease. | trypanosoma cruzi infected rhodnius robustus and/or rhodnius pictipes were commonly found, in large numbers, in the brazilian amazonian palms maximiliana regia ("inajá"), acrocomia sclerocarpa ("mucajá") and orbignya speciosa ("babaçu"). the common opossum, didelphis marsupialis, was the animal most frequently associated with triatomine infested palms. r. pictipes, frequently light-attracted into houses from palm trees, was the probable source of an acute case of chagas' disease in the vicinity ... | 1983 | 6443629 |
| [epidemiology of a case of chagas disease in the mosqueiro island-para]. | | 1988 | 3152134 |
| a simple method of tracking mammals and locating triatomine vectors of trypanosoma cruzi in amazonian forest. | a simple method of tracking mammals from capture points to their refuges was developed to study trypanosoma cruzi reservoir-vector associations in belém forest. a device containing a spool of fine line was carried by released mammals so that the line unwound under minimum tension as the animal proceeded and could be followed the day after release. twenty-three triatomine bugs of five species were found with 3 of 15 mammals retrieved. | 1976 | 786052 |
| [morbidity of chagas disease in areas of sertão da paraiba and caatinga do piauí]. | a clinical and electrocardiographic case control study was carried out with 186 pairs of persons with positive and negative serology for t. cruzi infection from the sertão paraíba and in 200 seropositive cases from the region of caatinga in the state of piauí, north-eastern brazil. the predominant clinical manifestations in seropositive cases in both areas were: palpitations, dyspnea on effort, precordial pain, dysphagia, odynophagia, pyrosis and intestinal constipation. the ekg abnormalities ra ... | 2006 | 8713611 |
| investigation of two outbreaks of suspected oral transmission of acute chagas disease in the amazon region, para state, brazil, in 2007. | acute chagas disease (acd) is caused by trypanosoma cruzi. acd outbreaks due to probable oral transmission occur regularly in small family gatherings that are exposed to contaminated foods. we studied two cohorts of residents on islands in the breves and bagre municipalities, in july and august 2007, to identify risk factors of transmission and to recommend preventative measures. of the 25 cases identified in both cohorts, 13 (52%) were men, and the most frequent symptoms were fever (96%),asthen ... | 2009 | 19762577 |