| [freshwater snails of the campus of manguinhos, oswaldo cruz foundation, rio de janeiro, rj]. | a survey of freshwater gastropods of the campus of manguinhos, fundação oswaldo cruz, rio de janeiro, was carried out during the last two years aiming to compare the current species with those found at the beginning of this century. among 18 breeding sites in 880,000m2 of the surveyed area, 13 showed the following species: antillorbis nordestensis; biomphalaria glabrata; biomphalaria straminea; lymnaea columella; melanoides tuberculatus; physa cubensis; pomacea glauca and pomacea lineata. notabl ... | 2001 | 11460215 |
| freshwater snails and schistosomiasis mansoni in the state of rio de janeiro, brazil: i-- metropolitan mesoregion. | in order to elaborate a planorbid chart of the state of rio de janeiro a survey of freshwater gastropods in the metropolitan mesoregion of this state was performed and revealed the occurrence of 20 species: antillorbis nordestensis (lucena, 1954); biomphalaria glabrata (say, 1818); biomphalaria schrammi (crosse, 1864); biomphalaria straminea (dunker, 1848); biomphalaria tenagophila (orbigny, 1835); burnupia sp.; drepanotrema anatinum (orbigny, 1835); drepanotrema cimex (moricand, 1839); drepanot ... | 2001 | 11586447 |
| [abundance and infection of biomphalaria glabrata with schistosoma glabrata in the state of rio de janeiro, brazil]. | to investigate the spatial distribution, abundance and natural schistosomiasis infection levels in the snail biomphalaria glabrata, the intermediate host of schistosoma mansoni in an area of the state of rio de janeiro, brazil. | 2001 | 11799465 |
| a comparative parasitologic study on biomphalaria glabrata snail and c3h/he mice infected with human and murine isolates of schistosoma mansoni derived from sumidouro, rio de janeiro, brazil. | experiments were carried out to analyze the biological characteristics of two sympatric isolates of schistosoma mansoni derived from humans and murines in a low endemic transmission area (sumidouro county, state of rio de janeiro, brazil). sympatric reared-laboratory biomphalaria glabrata and c3h/he mice were used as experimental hosts. parameters assessed comprised: precercarial period, infectivity and mortality (snails), prepatent period, infectivity (percentage of cercariae maturation into ad ... | 2003 | 14595456 |
| freshwater snails and schistosomiasis mansoni in the state of rio de janeiro, brazil: iv - sul fluminense mesoregion. | in this paper, the forth of a series dealing with the survey of freshwater gastropods of the state of rio de janeiro, the results of collections carried out in the sul fluminense mesoregion from 2000 to 2002 are presented and revealed the occurrence of 18 species: antillorbis nordestensis; biomphalaria glabrata; biomphalaria peregrina; biomphalaria straminea; biomphalaria tenagophila; drepanotrema anatinum; drepanotrema cimex; drepanotrema lucidum; ferrissia sp.; gundlachia ticaga; gundlachia sp ... | 2004 | 15273799 |
| molecular identification of symbionts from the pulmonate snail biomphalaria glabrata in brazil. | the icthyosporean, capsaspora owczarzaki, a known predator of schistosoma mansoni sporocysts in vitro, is more prevalent in laboratory-reared strains of the intermediate snail host, biomphalaria glabrata resistant to s. mansoni, than from the susceptible m line strain. we examined whether b. glabrata resistant to the nih-pr-1 strain of s. mansoni from 2 regions in brazil were also host to c. owczarzaki. symbiont presence was examined using hemolymph culturing and nested polymerase chain reaction ... | 2004 | 15357065 |
| [socio-cultural and ethical factors involved in the diagnosis of schistosomiasis mansoni in an area of low endemicity]. | five annual parasitological surveys and one serological survey, respectively based on the kato-katz and free sedimentation methods and the western blot technique, were conducted in sumidouro, rio de janeiro, brazil, an endemic county for schistosomiasis. possible influences of the use of these methodologies on social, cultural, and ethical aspects of the study population were also evaluated. having the opportunity to choose the different techniques was a conclusive issue influencing participatio ... | 2005 | 15692642 |
| freshwater snails and schistosomiasis mansoni in the state of rio de janeiro, brazil: vi--noroeste fluminense mesoregion. | in this paper, the last of a series dealing with the survey of freshwater gastropods of the state of rio de janeiro, the results of collections carried out in the noroeste fluminense mesoregion from 2002 to 2005 are presented and revealed the occurrence of 20 species: antillorbis nordestensis; biomphalaria glabrata; b. straminea; b. tenagophila; drepanotrema anatinum; d. cimex; d. depressissimum; d. lucidum; ferrissia sp.; gundlachia ticaga; gundlachia sp.; heleobia sp.; idiopyrgus sp.; lymnaea ... | 2006 | 17308776 |