| possible oral transmission of acute chagas' disease in brazil. | in october 1986, 7 to 22 days after a meeting at a farm in paraíba state, 26 individuals presented with a febrile illness associated with bilateral eyelid and lower limb edema, mild hepatosplenomegaly, lymphadenopathy and, occasionally a skin rash. a 11-year-old boy exhibited atrial premature complexes and a 74-year-old patient developed acute heart failure. in two patients hospitalized in são paulo city, acute chagas' disease was diagnosed by the demonstration of circulating trypanosoma cruzi. ... | 1991 | 1844961 |
| inferring from the cyt b gene the triatoma brasiliensis neiva, 1911 (hemiptera: reduviidae: triatominae) genetic structure and domiciliary infestation in the state of paraíba, brazil. | the triatoma brasiliensis genetic structure was analyzed using the cyt b gene in different geographic locations and ecotopes after a short and long period after insecticide treatment. four different localities (16-40 km apart) in the state of paraíba, brazil, were sampled. analysis of molecular variance (amova) showed that grouping populations according to the geographic location or ecotope resulted in a higher variance among populations within groups (phi(sc) ranging from 0.15 to 0.17) than amo ... | 2008 | 18458315 |
| [epidemiology of chagas disease in four rural localities in jaguaruana, state of ceará: seroprevalence of infection, parasitemia and clinical characteristics]. | a cross-sectional study on chagas disease that examined the populations of four localities (n masculine = 541 inhabitants) in the municipality of jaguaruana, state of ceará, showed seroprevalence of chagas infection of 3.1%, as assessed by indirect immunofluorescence, indirect hemagglutination and elisa tests. the rate was higher among adults over 50 years old, without any difference in relation to sex. positive parasitemia was found in 11.8% (2/17) of the seropositive individuals by means of in ... | 2008 | 18853005 |