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Detection of Planorbis planorbis and Anisus vortex as first intermediate hosts of Alaria alata (Goeze, 1792) in natural conditions in France: Molecular evidence.

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Article
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Portier, Julien ; Jouet, D. ; Vallée, Isabelle ; Ferté, Hubert

Veterinary parasitology

EA 4688 - USC Anses «VECPAR», UFR de Pharmacie, Université de Reims Champagne - Ardenne, 51 rue Cognacq-Jay, 51096 Reims, France; UMR BIPAR, Anses, ENVA, UPEC, Laboratory for Animal Health, Anses, Maisons-Alfort, 23 avenue du Général de Gaulle, 94706 Maisons Alfort, France.

2012

Article

Abstract : Alaria alata (Goeze, 1792), a trematode that parasitizes canids, usually needs two intermediate hosts to complete its life cycle: an aquatic freshwater snail and an amphibian. Although many studies have been undertaken on the wild boar's role as paratenic host, owing to the potential threat to human health, few have sought to identify the snails that act as first intermediate hosts in natural conditions. Adopting a molecular approach, with specific markers for a portion of the second internal transcribed spacer (ITS-2), we detected haplotypes of A. alata furcocercariae in two snail species (Planorbis planorbis and Anisus vortex), identified by molecular analysis (ribosomal 18S, mitochondrial 16S and COI). This study provides the first description of snails naturally emitting A. alata furcocercaria in Western Europe.
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