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Lymnaeid snails hosts of Fasciola hepatica and Fasciola gigantica (Trematoda: Digenea): A worldwide review

Abstract:

Fasciolosis is a snail-borne disease, causing serious public and veterinary health problems worldwide. This disease is produced by infection with Fasciola hepatica or Fasciola gigantica through the consumption of vegetables or water contaminated with the parasite's metacercarial cysts. Both species of liver flukes are transmitted worldwide by small freshwater snails of the family Lymnaeidae. A global account on the species that are actually or may act as potential hosts of Fasciola spp., compiling particular research on their geographical distribution and susceptibility, is needed as a helpful tool in the understanding of fasciolosis transmission, and therefore in the control and prevention programmes of the disease. We have gathered here a comprehensive review of those lymnaeid species that are known to transmit the parasites in the field or that have been experimentally tested. We aim to bring forward the main intermediate hosts by regions in order to facilitate the understanding of worldwide transmission.