| degree of host-parasite compatibility between schistosoma mansoni and their intermediate molluscan hosts in brazil. | the compatibility of biomphalaria tenagophila, b. straminea and b. glabrata from minas gerais with different strains of schistosoma mansoni was evaluated using the method of frandsen (1979b) in standardized experiments. one hundred and fifty of each species of snail were individually exposed in the laboratory to 50 miracidia of s. mansoni lines le, sj and al. the cercariae from the infected snails were counted and used to calculate tcp/100 indices, which were compared with those of frandsen (197 ... | 1995 | 8524084 |
| [malacological survey of the soledade lake hydrographic basin, in ouro branco (minas gerais, brazil)]. | a malacological survey was carried out at the soledade lake, in ouro branco, state of minas gerais, for the period 1986-1991. a total amount of 46,579 mollusks was collected, and among them seven species corresponding to five families could be found, as follows: 39,176 specimens of biomphalaria tenagophila; 1,296 b. glabrata; 7 drepanotrema cimex; 2,527 physa sp; 417 lymnaea sp; 92 pomacea hastrum, and 3,064 specimens of melanoides tuberculata (melanniidae = thiaridae) were collected from march/ ... | 1994 | 7569611 |
| [susceptibility of biomphalaria tenagophila from belo horizonte and vicinities to infection with 3 strains of schistosoma mansoni]. | | 1983 | 6658299 |
| on the finding of biomphalaria tenagophila naturally infected with schistosoma mansoni in the state of minas gerais, brazil. | | 1985 | 3937209 |
| [1st finding of biomphalaria tenagophila (d'orbigny, 1835) naturally infected with schistosoma mansoni, in itajubá, in the south of the state of minas gerais, brazil]. | | 1985 | 3936162 |
| [potential of biomphalaria tenagophila from pampulha lake, belo horizonte, mg, as a host of schistosoma mansoni]. | biomphalaria tenagophila snails, from a population originally obtained from "pampulha" lake, belo horizonte, minas gerais state, brazil, were exposed to miracidia from four strains of schistosoma mansoni: "le" and "hk" from belo horizonte, "al" from alagoas and "sj" from são josé dos campos, são paulo. the "le", "al" and "sj" strains are maintained in the laboratory and the "hk" strain was obtained from feces of a patient residing near to "pampulha" lake. infection rates were of 4% ("le" strain) ... | 1987 | 3507567 |
| [the susceptibility of the biomphalaria tenagophila (d'orbigny 1835) from itajubá, minas gerais, to infection by the le strain of schistosoma mansoni sambon 1907 from belo horizonte, brazil]. | | 1979 | 462114 |
| schistosomiasis mansoni in the region of the triângulo mineiro, state of minas gerais, brazil. | in order to reevaluate the possible presence of schistosomiasis mansoni in the triângulo mineiro, one of the areas of the state of minas gerais where this parasite is not commonly found, malacological survey and fecal examinations were undertaken in the region between october 1990 and june 1992. a sample of 7,032 1st grade school children from 29 counties had their feces examined using the kato-katz method. amongst the children examined, two from planura and one from each countie of capinópolis, ... | 1994 | 8524054 |
| [susceptibility of biomphalaria tenagophila and biomphalaria glabrata from a same region to 2 schistosoma mansoni strains]. | b. tenagophila snails from ouro branco, mg, showed positivity for s. mansoni, with infection rates of 5%, 10%, (sj strain), and 1% (le strain) using a pool of miracidia. the mollusks were found to be susceptive from the 3rd generation reared in laboratory onwards. the b. tenagophila (ob, mg) when individually exposed to 10 miracidia, showed infection rate of 2% for le strain. b. glabrata snails from gagé, mg, showed a positivity rate of 58% for s. mansoni (le strain), under experimental conditio ... | 1994 | 7569607 |
| natural and experimental infection of planorbids from the island of santa catarina (brazil). | studies of eight localities on the island of santa catarina revealed the presence of three species of the molluscan family planorbidae: biomphalaria tenagophila, drepanotrema cimex and biomphalaria oligoza, the first one being naturally infected by cercaria ocellifera, a furcocercaria with morphological characteristics of cercaria caratinguensis, and by an unknown furcocercaria. drepanotrema cimex was infected by a furcocercaria with characteristics of c. caratinguensis and by c. macrogranulosa. ... | 1992 | 1342085 |
| evaluation of temporal, seasonal and geographic stability of the molluscicidal property of euphorbia splendens latex. | laboratory tests with aqueous solutions of euphorbia splendens var. hislopii latex have demonstrated seasonal stability of the molluscacidal principle, with ld90 values of 1.14 ppm (spring), 1.02 ppm (fall), 1.09 ppm (winter), and 1.07 ppm (summer) that have been determined against biomphalaria tenagophila in the field. assays on latex collected in belo horizonte and recife yielded ld90 values similar to those obtained with the reference substance collected in rio de janeiro (ilha do governador) ... | 1992 | 1342068 |