| the importance of the opossum (didelphis albiventris) as a reservoir for trypanosoma cruzi in bambuí, minas gerais state. | in a survey realized on the sylvatic and peridomestic environments at bambuí county, minas gerais state, 44 (37.9%) out of 116 opossums (didelphis albiventris) captured were found to be naturally infected with trypanosoma cruzi. one hundred and forty three parasite samples were obtained from 43 infected opossums using simultaneously hemoculture, xenodiagnosis (triatoma infestans, panstrongylus megistus and rhodnius neglectus) and examination of anal glands contents. the parasite samples were cha ... | 1991 | 1842405 |
| evaluation of the xenodiagnosis of chronic chagas patients infected ten years or over in an area where transmission has been interrupted--iguatama and pains, west minas gerais state, brazil. | to evaluate the results of xenodiagnosis in chronic chagas patients infected for ten years or over in an area where transmission has been stemmed as well as the performance of these tests applied one or more times to determine the presence of the parasite in serum-positive patients for trypanosoma cruzi infection, 570 xenodiagnosis were performed in 246 patients by exposing each patient to 40 triatoma infestans nymphs of 3rd/4th stage once, twice or three times, at 30 days intervals. the 570 xen ... | 1991 | 1842429 |
| [monthly variations of the incidence of the evolution forms of triatoma infestans and panstrongylus megistus in the community of bambui, state of minas gerais (ii: 1951-1964)]. | | 1968 | 4908873 |
| evaluation of the chagas' disease vector control program in minas gerais, brazil, with special reference to triatoma sordida. | as of 1979, data gathered by the chagas' disease control program (cdcp) in the brazilian state of minas gerais indicated that triatoma infestans was the chagas' disease vector most commonly found in and around human dwellings. a decade later, however, this picture had changed, presumably as a result of control efforts; few specimens of t. infestans were collected; and triatoma sordida had become the most commonly collected vector insect. the aim of the work reported here was to assess the effect ... | 1994 | 7951364 |
| attempts to improve xenodiagnosis: comparative test of sensibility using rhodnius neglectus, panstrongylus megistus, triatoma vitticeps and triatoma infestans in endemic areas of brazil. | from june 1984 to july 1992, 392 xenodiagnostic tests were applied on 264 patients with chronic chagas disease from brazilian endemic areas of virgem da lapa and coronel murta, situated in the jequitinhonha valley, in the state of minas gerais. the susceptibilities of rhodnius neglectus, panstrongylus megistus, triatoma vitticeps and triatoma infestans were compared. most of the time 20 nymphs (fourth instar) of each species were applied to 161 women and 103 men aged between 5 and 83 years of ag ... | 1997 | 9302418 |
| comparative developmental and susceptibility to insecticide of bolivian and brazilian populations of triatoma infestans. | the triatomine bug triatoma infestans probably originated in bolivia and dispersed passively over wide areas of south america, where it is the principal vector of trypanosoma cruzi. in the region of its probable origin this species shows colonization in two different ecotopes, so that it may be encountered in sylvatic as well as in artificial habitats. the sylvatic colonization pattern is not observed in the rest of its range, where t. infestans is exclusive to man-made habitats. the objective o ... | 2000 | 11080780 |
| [chagas' disease in lassance, minas gerais state: clinical-epidemiological re-evaluation ninety years after the discovery by carlos chagas]. | the history and present situation of chagas' disease in lassance (the county where carlos chagas discovered american trypanosomiasis) were studied through a historical analysis and clinical and epidemiological research performed from 1999 to 2001. lassance was an important focus of chagas' disease from carlos chagas up until the 1980's, because of intensive infestation in dwellings by panstrongylus megistus and triatoma infestans, two important species which were efficiently controlled in the la ... | 2002 | 12011926 |
| [the impact of the extensive chemical control of triatoma infestans on the incidence of acute cases and the prevalence of human chagas disease. the example of montalvânia, minas gerais state]. | from the emergency of acute cases of chagas disease in montalvânia, minas gerais, brazil, with the implementation of triatomine chemical control, the disappearing of these cases and the immediate reduction of incidence of the infection in the municipality are verified. the evolution of the dispersion and control of triatoma infestans in montalvânia and the evolution of the serology in general population during the last thirty years are showed. | 2003 | 15049113 |
| [entomological surveillance for chagas disease in the mid-western region of minas gerais state, brazil, from 2000 to 2003]. | in minas gerais state, brazil, after the elimination of triatoma infestans by the brazilian chagas disease control program, some triatomine species, such as panstrongylus megistus, have merited the attention of entomological surveillance authorities. after the decentralization of the brazilian health system, certain administrative and operational difficulties have been observed in some municipalities (counties). this study aims to evaluate entomological surveillance for chagas disease in the 54 ... | 2005 | 15868046 |
| head morphometry and isoenzymatic profile of two triatoma infestans klůg, 1834 (hemiptera, reduviidae) populations. | the triatomine bug triatoma infestans was probably originated in bolivia and dispersed passively over large areas of south america, where it is the major vector of trypanosoma cruzi. in its probable origin area this species shows two different patterns of behaviour, being found both in sylvatic and human related habitats. such behaviour is not observed in other areas of its distribution, where it is exclusive to human related habitats. the main objective of the present study was to evaluate head ... | 2011 | 19653989 |