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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 99, No. 3, 2004, pp. 275-280
Bioline Code: oc04049
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 99, No. 3, 2004, pp. 275-280

 en Freshwater Snails and Schistosomiasis Mansoni in the State of Rio de Janeiro, Brazil: IV - Sul Fluminense Mesoregion
Silvana C Thiengo; Aline C Mattos; M Fernanda Boaventura & Monica A Fernandez

Abstract

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 check for this species in other resources ; Biomphalaria glabrata check for this species in other resources ; Biomphalaria peregrina check for this species in other resources ; Biomphalaria straminea check for this species in other resources ; Biomphalaria tenagophila check for this species in other resources ; Drepanotrema anatinum check for this species in other resources ; Drepanotrema cimex check for this species in other resources ; Drepanotrema lucidum check for this species in other resources ; Ferrissia check for this species in other resources sp.; Gundlachia ticaga check for this species in other resources ; Gundlachia check for this species in other resources sp.; Heleobia check for this species in other resources sp.; Lymnaea columella check for this species in other resources ; Melanoides tuberculatus check for this species in other resources ; Physa acuta check for this species in other resources ; Physa marmorata check for this species in other resources ; Pomacea sordida check for this species in other resources and Pomacea check for this species in other resources sp. As to the snail hosts of Schistosoma mansoni check for this species in other resources the most frequent species was B. tenagophila, found in all municipalities surveyed, except Parati. Besides new records the present study extends the distribution of B. peregrina and B. straminea in the state. No specimens were found harbouring larval forms of S. mansoni although different kinds of cercariae had been observed. An account about the current schistosomiasis transmission sites in this Mesoregion is presented as well.

Keywords
freshwater snails - schistosomiasis mansoni - cercariae - Rio de Janeiro - Brazil

 
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