FasciolaFasciola hepaticaFascioliasisAntibodies, HelminthAntigens, HelminthLymnaeaAnthelminticsHelminth ProteinsDNA, HelminthAntiplatyhelmintic AgentsParamphistomatidaeCathepsin LSnailsAspermiaDicrocoeliumEchinostomaHost-Parasite InteractionsEchinostomiasisSheep DiseasesParasitologyMolluscacidesBenzimidazolesTetraoxanesCathepsinsParasite Egg CountNasturtiumGeographic MappingDisease VectorsClonorchis sinensisHost SpecificityTrematodaDNA, Ribosomal SpacerSaposinsCubaSchistosoma mansoniClonorchiasisCestode Infections