2005•Memórias do Instituto Oswaldo CruzOpen access

First report of Lymnaea cousini Jousseaume, 1887 naturally infected with Fasciola hepatica (Linnaeus, 1758) (Trematoda: Digenea) in Machachi, Ecuador

A Ángel Villavicencio, Maurício Carvalho de Vasconcellos

Abstract

We report the first finding of Lymnaea cousini naturally infected with Fasciola hepatica in Ecuador. A sample of 70 snails was collected in April 2005 from a wetland located in a valley at approximately 3000 m a.s.l., near the locality of Machachi, Pichincha Province. The prevalence of natural infection in L. cousini was 31.43%, which is the highest value ever recorded for naturally infected lymnaeid species.

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Key concepts: Fasciola hepatica, Digenea, Trematoda, Hepatica, Biology, Fasciola, Lymnaea, Helminths