Experimental evidence and ecological perspectives for the adaptation of Schistosoma mansoni Sambon, 1907 (Digenea: Schistosomatidae) to a wild host, the water-rat, Nectomys squamipes Brants, 1827 (Rodentia: Sigmodontinae)

dc.creatorD'Andrea, Paulo Sérgio
dc.creatorFernandes, Fabiano Araujo
dc.creatorCerqueira, Rui
dc.creatorRey, Luis
dc.date2019-09-19T15:09:15Z
dc.date2019-09-19T15:09:15Z
dc.date2002
dc.date.accessioned2023-09-26T23:58:52Z
dc.date.available2023-09-26T23:58:52Z
dc.identifierD´ANDREA, Paulo Sérgio et al. Experimental Evidence and Ecological Perspectives for the Adaptation of Schistosoma mansoni Sambon, 1907 (Digenea: Schistosomatidae) to a Wild Host, the Water-rat, Nectomys squamipes Brants, 1827 (Rodentia: Sigmodontinae). Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 97, Suppl. I, p. 11-14, 2002.
dc.identifier0074-0276
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/35692
dc.identifier10.1590/s0074-02762002000900003
dc.identifier1678-8060
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8896201
dc.descriptionDue to the semi aquatic habits and the overlap of the geographical distribution of the water-rat, Nectomys spp., with schistosomiasis endemic areas, these wild rodents are very likely to acquire Schistosoma mansoni infection in their daily activities. The role of the water-rat in the S. mansoni cycle would be substantiated if one could prove that these rodents acquire the parasite during their own activity time, a completely independent time schedule of human activities. To pursue this goal, we performed two field experiments in the municipality of Sumidouro, State of Rio de Janeiro, Brazil, a schistosomiasis endemic area where N. squamipes is found naturally infected. One experiment was devised as a series of observations of activity time of the water-rat. The other experiment was a test of the occurrence of late transmission of S. mansoni to the water-rat. The daily activity pattern showed that the water-rat is active chiefly just after sunset. At both diurnal and late exposition essays the water-rat sentinels got infected by S. mansoni. These findings clarify ecological and behavioral components necessary to the adaptation of S. mansoni to the water-rat as a non human definitive host and the existence of a transmission cycle involving this animals as a reservoir.
dc.formatapplication/pdf
dc.languageeng
dc.publisherFundação Oswaldo Cruz. Instituto Oswaldo Cruz
dc.rightsopen access
dc.subjectNectomys squamipes
dc.subjectSchistosoma mansoni
dc.subjectPadrão de atividade diária
dc.subjectReservatório hospedeiro
dc.subjectNectomys squamipes
dc.subjectSchistosoma mansoni
dc.subjectDaily activity pattern
dc.subjectHost reservoir
dc.titleExperimental evidence and ecological perspectives for the adaptation of Schistosoma mansoni Sambon, 1907 (Digenea: Schistosomatidae) to a wild host, the water-rat, Nectomys squamipes Brants, 1827 (Rodentia: Sigmodontinae)
dc.typeArticle


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