| morphobiological aspects of rhodnius brethesi matta, 1919 (hemiptera:reduviidae) from the upper and middle negro river, amazon region of brazil: i - scanning electron microscopy. | the occurrence of autochthonous cases of chagas disease in the amazon region of brazil over recent decades has motivated an intensification of studies in this area. different species of triatomines have been identified, and ten of these have be proven to be carriers of the parasite trypanosoma cruzi or " cruzi-like " parasites. studies conducted in the municipalities of santa isabel do rio negro and barcelos, located on the upper and middle of the negro river, microregion of negro river, state o ... | 2006 | 16444425 |
| [detection of antibodies against trypanosoma cruzi in somoto, nicaragua, using indirect elisa and ifi on blood samples on filter paper]. | we standardized a solid-phase enzyme-linked immunosorbent assay (elisa) in order to study the presence of trypanosoma cruzi antibodies in asymptomatic persons who live in an area of nicaragua endemic for chagas' disease. the test was standardized to analyze filter-paper blood samples, which are easy to transport. in the first phase of our investigation, elisa was used to study 18 samples of total serum and 18 eluates of blood from patients with chronic chagas' disease; 30 samples of serum and 30 ... | 2000 | 11209254 |