Fasciola hepaticaFasciolaFascioliasisCapillariaEnoplida InfectionsAntibodies, HelminthAntigens, HelminthLymnaeaAnthelminticsAntiplatyhelmintic AgentsHelminth ProteinsParamphistomatidaeEchinostomaEchinostomiasisDNA, HelminthCathepsin LDicrocoeliumSnailsSheep DiseasesLiver Diseases, ParasiticGeographic MappingParasite Egg CountNasturtiumTetraoxanesBenzimidazolesCathepsinsMolluscacidesSaposinsAdamantaneCestode InfectionsHost-Parasite InteractionsTrematodaAspermiaCubaDisease Vectors