| the epidemiologic importance of triatoma brasiliensis as a chagas disease vector in brazil: a revision of domiciliary captures during 1993-1999. | to clarify the epidemiologic importance of triatoma brasiliensis, the most important chagas disease vector in the northeastern of brazil, capture data related to this species, its distribution, capture index, and percentages of natural infection by trypanosoma cruzi were examined in 12 different brazilian states. the brazilian national health foundation collected these data from 1993 to 1999, a period during which a total of 1,591,280 triatomines (21 species) were captured in domiciles within th ... | 2003 | 12937751 |
| triatomine vectors of trypanosoma cruzi-like trypanosomes in urban areas of são luiz, maranhão, brazil. | | 1983 | 6356509 |
| evaluation of the micro enzyme-linked immunosorbent assay (elisa) for antibodies in american visceral leishmaniasis: antigen selection for detection of infection-specific responses. | this study was designed to evaluate the elisa for diagnosis of american visceral leishmaniasis (avl) using antigen prepared from different leishmania isolates and from a strain of trypanosoma cruzi. two leishmania donovani chagasi isolates from bahia and maranhão (both states of northern brazil), one l. donovani from sudan, one l. mexicana amazonensis isolate, and one t. cruzi isolate were used. a total of 375 sera were tested, including 119 from avl patients, 96 from nonleishmaniasis hospitaliz ... | 1986 | 3080918 |
| emerging chagas disease: trophic network and cycle of transmission of trypanosoma cruzi from palm trees in the amazon. | a trophic network involving molds, invertebrates, and vertebrates, ancestrally adapted to the palm tree (attalaea phalerata) microhabitat, maintains enzootic trypanosoma cruzi infections in the amazonian county paço do lumiar, state of maranhão, brazil. we assessed seropositivity for t. cruzi infections in the human population of the county, searched in palm trees for the triatomines that harbor these infections, and gathered demographic, environmental, and socioeconomic data. rhodnius pictipes ... | 2001 | 11266300 |
| [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 |
| on the possibility of autochthonous chagas disease in roraima, amazon region, brazil, 2000-2001. | chagas disease has been almost entirely eradicated from the arid zones in central and northeastern brazil where rare or no autochthonous cases have been reported. however, in the last 10 years the disease has increasingly been registered in the amazon region. aiming to investigate the possibility of the occurrence of autochthonous cycle of chagas disease in roraima, triatomine collections, vectorial susceptibility studies (this one to be shown elsewhere), parasitological and serological analyses ... | 2005 | 15729474 |