HelminthsHelminthiasisAntigensHelminthiasis, AnimalT-Lymphocytes, CytotoxicTherapy with HelminthsAntigens, BacterialAntigens, HelminthAntigens, NeoplasmIntestinal Diseases, ParasiticAntigens, SurfaceAntigens, ViralAntibodies, HelminthTrichurisAncylostomatoideaAnthelminticsHelminth ProteinsAntigens, ProtozoanHLA AntigensH-2 AntigensNematospiroides dubiusAntigens, CDAntigens, Polyomavirus TransformingStrongylida InfectionsCytotoxicity, ImmunologicNematode InfectionsAntigens, FungalCestodaParasite Egg CountMice, Inbred BALB CAntibodies, MonoclonalAlbendazoleEpitopesT-LymphocytesCarcinoembryonic AntigenReceptors, Antigen, T-CellHistocompatibility AntigensAntigens, Viral, TumorHLA-A2 AntigenLymphocyte ActivationHLA-DR AntigensAntigens, CD8Pore Forming Cytotoxic ProteinsSchistosoma mansoniSchistosomaFilarioideaProtozoan InfectionsHistocompatibility Antigens Class IIHLA-A AntigensMice, Inbred C57BLImmunoglobulin GProliferating Cell Nuclear AntigenSchistosomiasis mansoniMolecular Sequence DataCell LineSchistosomiasisEnzyme-Linked Immunosorbent AssayCytotoxicity Tests, ImmunologicHistocompatibility Antigens Class IFecesCross ReactionsCestode InfectionsReceptors, Antigen, B-CellAntigens, CD15Prostate-Specific AntigenAntigens, CD3O AntigensNippostrongylusFilariasisCells, CulturedAmino Acid SequenceAntigens, Tumor-Associated, CarbohydrateSpleenCytotoxinsTrematodaTh2 CellsInterferon-gammaFasciola hepaticaFlow CytometryImmunizationHost-Parasite InteractionsImmunity, CellularDNA, HelminthHepatitis B Surface AntigensCD8-Positive T-LymphocytesDendritic CellsNecator americanusTrematode InfectionsB-LymphocytesAntibody FormationAntibody SpecificityBlood Group AntigensAntigens, CD4Tumor Cells, CulturedAntigens, DifferentiationSoilHLA-B AntigensCD4-Positive T-LymphocytesAntigen-Antibody ReactionsNematoda