title: [Schistosomiasis mansoni and distribution of freshwater mollusks in natural bodies of water in Niterói, Rio de Janeiro State, Brazil].
abstract: The authors report on the distribution of freshwater mollusks in Niterói, Rio de Janeiro State, Brazil, and notification of schistosomiasis cases in this municipality from 1995 to 2000. All breeding sites favorable to freshwater mollusks were surveyed, showing the following species: Antillorbis nordestensis (Lucena, 1954), Biomphalaria straminea (Dunker, 1848), Biomphalaria tenagophila (Orbigny, 1835), Drepanotrema anatinum (Orbigny, 1835), Lymnaea columella Say, 1817, Melanoides tuberculatus (Müller, 1774), Physa cubensis Pfeiffer, 1839, Physa marmorata Guilding, 1828, and Pomacea sordida (Swainson, 1823). Some 3,691 specimens of snail hosts for Schistosoma mansoni Sambon, 1907 were examined by exposure to artificial light and crushing. No S. mansoni cercariae were found, although other types of cercariae were observed.
authors.affiliation: Centro de Controle de Zoonoses e de Doenças de Transmissão Vetorial, Fundação Municipal de Saúde de Niterói, Niterói, RJ, 24140-590, Brasil.
authors.forename: Almir de Souza
authors.initials: Ade S
authors.lastname: Medeiros
authors.forename: Oswaldo José da
authors.initials: OJ
authors.lastname: Cruz
authors.forename: Monica Ammon
authors.initials: MA
authors.lastname: Fernandez
mesh_terms: D000818:Animals; D001700:Biomphalaria / Q000469:parasitology*; D001938:Brazil / Q000453:epidemiology; D004197:Disease Reservoirs; D004199:Disease Vectors / Q000145:classification*; D005260:Female; D005618:Fresh Water; D006801:Humans; D008297:Male; D011156:Population Density; D012550:Schistosoma mansoni / Q000502:physiology*; D012555:Schistosomiasis mansoni / Q000453:epidemiology*