| [compatibility between nine strains of biomphalaria glabrata coming from endemic and non-endemic areas and one strain of schistosoma mansoni from venezuela]. | nine lots of 32 b. glabrata snails (5-7mm in diameter) from the following strains from the endemic area: cagua, valencia lake (puerta negra sector), ingenio bolívar (aragua state), mariara, caserío el 25 and güigüe (carabobo state), and from the non-endemic area: anzoátegui (lara state), chabasquén (portuguesa state) and caripe (monagas state) were experimentally infected (5 miracidiums/snail) with c5 schistosoma mansoni strain. the intramolluscal prepatent period oscillated between 23 and 25 da ... | 1999 | 10881105 |
| [susceptibility of biomphalaria glabrata to schistosoma mansoni from venezuela and brazil]. | schistosoma mansoni partially develops its life cycle into snails of the family planorbid. biomphalaria glabrata represents an important host-intermediate. this paper reports experimental infection with miracidia vs. snail in sympatric and parapatric combination. the infection assay to sympatric combination were: bh snail (belo horizonte, brasil) vs. a common geographic origin parasite, and barbula, carabobo state, venezuela vs. sm venezuela parasitic. the parapatric combination were: bh snail v ... | 1999 | 10932760 |
| surface morphology and characteristics of hemocytes of biomphalaria glabrata (pulmonata: planorbidae) from two geographic sources. | biomphalaria glabrata is a fresh water snail of medical importance since it is the intermediate host of the trematode schistosoma mansoni. the internal defense system of mollusks is mostly represented by circulating elements of the hemolymph (hemocytes). the infectivity of s. mansoni to b. glabrata is determined by genetic factors and evolutionary adaptations. in the present work factors about the parasite/snail relationship were evaluated, especially those related to the morphology and characte ... | 2001 | 17061496 |