Antigens, HelminthHelminthsSchistosomaHelminthiasisHelminth ProteinsMetastrongyloideaHelminthiasis, AnimalSchistosoma mansoniAngiostrongylusFasciola hepaticaNematospiroides dubiusAscaris suumNippostrongylusTherapy with HelminthsSchistosomiasis mansoniIntestinal Diseases, ParasiticAntigensAntibodies, HelminthTrichurisTh2 CellsAncylostomatoideaAnthelminticsEosinophilsAntigens, BacterialAntigens, NeoplasmStrongylida InfectionsAntigens, SurfaceNematode InfectionsCestodaParasite Egg CountMice, Inbred C57BLAntigens, ViralAlbendazole