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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, ...19948524054
[prevalence of schistosoma mansoni infection in two municipalities of the state of alagoas, brazil].preliminary studies indicate a probable schistosomiasis expansion in alagoas. this work analyzes the occurrence of schistosoma mansoni in students from two municipalities, located in the mundaú and paraíba rivers basins.201020563503
intermediate hosts of schistosoma mansoni in brazil.the brazilian planorbidical chart is slowly but progressively been increased by new data. distribution of vector species of schistosoma mansoni, according to paraense, 1986, may be thus resumed: biomphalaria glabrata--delimited by parallels 13 and 21 degrees s and meridians 39 and 45 degrees w, area of greater dominance (southeast bahia, oriental hal of minas gerais and espírito santo). it is observed along the coast line of the states of sergipe, alagoas, pernambuco, paraiba and rio grande do n ...19921343914
absence of natural infection by schistosoma mansoni in wild rodents captured in endemic areas for schistosomiasis in the state of alagoas, brazil. 19947732270
[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) ...19873507567
[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 ...19883152277
genomic variability in field populations of schistosoma mansoni in brazil as detected with a ribosomal gene probe.a cloned fragment of the ribosomal gene of schistosoma mansoni, psm 389, which contains part of the small rrna gene plus a portion of the nontranscribed intergenic spacer, was used in southern hybridization analyses to investigate genomic variation in natural populations of s. mansoni in brazil. genomic dnas were isolated from schistosomes from infected patients (some of whom did not respond to antischistosomal chemotherapy), and from snails from disparate geographic locations in brazil. restric ...19911671740
absence of cervical schistosomiasis among women from two areas of north-eastern brazil with endemic schistosoma mansoni.genital manifestations in schistosomiasis haematobium are common and are associated with considerable morbidity. although schistosoma mansoni may also cause genital disease, the frequency of this complication is not known. cervical biopsies (n=401) and pap smears (n=981) were therefore collected from women living in two s. mansoni-endemic areas (in the states of alagoas and ceará, in north-eastern brazil). the women were screened for the presence of sexually transmitted diseases and for the pres ...200616417713
[schistosomiasis mansoni in two mesoregions of the state of alagoas].in brazil, high levels of schistosomiasis mansoni are linked to the presence of the species biomphalaria glabrata, considered to be the main host of schistosoma mansoni in endemic areas. this work conducted a survey of 40 endemic municipalities in the state of alagoas, aiming at identifying this species and its important role in the maintenance of schistosomiasis. among the municipalities surveyed, 28 lie in the mesoregion of the leste alagoano and 12, in the mesoregion of the agreste alagoano. ...200516082475
[infestation of humans and wild rodents with schistosoma mansoni in localities in the town of vicosa (state of alagoas, brazil)]. 196214012646
[observations on the ecology of australorbis glabratus in enclosed foci (wells) in maceio (state of alagoas, brazil). i. fluctuations of density of the snails and indices of their infestation with schistosoma mansoni]. 196314012645
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