| [resistance of biomphalaria peregrina of santa rita do sapucaí, minas gerais, brazil to infection with 3 strains of schistosoma mansoni]. | the descendants of the planorbid snail biomphalaria peregrina, collected in the region of santa rita do sapucaí, minas gerais, brazil, were exposed to miracidia of three strains of schistosoma mansoni: "le" strain from belo horizonte, state of minas gerais; "sj", strain from são josé dos campos, state of são paulo and "al" strain from state of alagoas. of 300 snails exposed to miracidia of the three strains, none was infected. on the other hand, 300 biomphalaria glabrata of the control groups sh ... | 1988 | 3152277 |
| [lymnic snails from the microregion of belo horizonte, minas gerais, brazil with an emphasis on parasite disease vectors]. | a malacological survey to detect foci of transmission of schistosomiasis and other parasitic diseases was undertaken into water-courses from 13 municipalities of microregion of belo horizonte, mg, brazil. from 1990 to 1996, 22,066 snails were collected. from those, 378 (1.7%) were found infected by trematodes: biomphalaria glabrata (7,920), infected by schistosoma mansoni (1.9%), echinostomatidae (1.2%), strigeidae (0.6%), cercaria minense (0.1%) and derogenidae (-0.1%); b. straminea (4,093) inf ... | 1998 | 9789443 |
| re-evaluation of schistosomiasis mansoni in minas gerais, brazil. iii. "noroeste de minas" mesoregion. | this study was conducted to assess the presence of schistosomiasis mansoni in the "noroeste de minas" mesoregion, an area considered non-endemic. a malacologic survey and parasitologic stool examinations were undertaken in 13 municipalities of the mesoregion. a sample of 3,283 primary school students was submitted to fecal examination by the kato-katz method. a total of 3,627 planorbids was collected and examined. the molluscs were identified as biomphalaria straminea in seven municipalities (un ... | 1998 | 10030070 |