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  • Title: Biomphalaria molluscs (Gastropoda: Planorbidae) in Rio Grande do Sul, Brazil.
    Author: Pepe MS, Caldeira RL, Carvalho Odos S, Muller G, Jannotti-Passos LK, Rodrigues AP, Amaral HL, Berne ME.
    Journal: Mem Inst Oswaldo Cruz; 2009 Aug; 104(5):783-6. PubMed ID: 19820842.
    Abstract:
    The present study was aimed at characterising Biomphalaria species using both morphological and molecular (PCR-RFLP) approaches. The specimens were collected in 15 localities in 12 municipalities of the southern region of the state of Rio Grande do Sul, Brazil. The following species were found and identified: Biomphalaria tenagophila guaibensis, Biomphalaria oligoza and Biomphalaria peregrina. Specimens of the latter species were experimentally challenged with the LE Schistosoma mansoni strain, which showed to be refractory to infection.
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