Immunity, InnateImmunity, MucosalImmunityMucous MembraneImmunity, CellularImmunoglobulin A, SecretoryIntestinal MucosaAdaptive ImmunityReceptors, Polymeric ImmunoglobulinImmunoglobulin AMouth MucosaAdministration, IntranasalMice, Inbred BALB CMice, Inbred C57BLImmunity, HumoralNasal MucosaMucusMolecular Sequence DataVaginaPlant ImmunityAdministration, MucosalEpithelial CellsDendritic CellsImmunoglobulin GEpitheliumVaccinationDefensinsbeta-DefensinsImmunity, Maternally-AcquiredSecretory ComponentCytokinesBacterial AdhesionT-LymphocytesIleumGastric MucosaColonAmino Acid SequenceIntestine, SmallGenitalia, FemaleCD4-Positive T-LymphocytesIntestinesAntibodies, BacterialAntibodies, ViralRespiratory MucosaRespiratory SystemBase SequenceAdjuvants, ImmunologicInterferon-gammaUrinary BladderCD8-Positive T-LymphocytesMice, KnockoutBacterial ProteinsMucinsMicroscopy, Electron, ScanningLymphocyte ActivationAntigens, BacterialCells, CulturedVaccines, SyntheticSpleenHost-Pathogen InteractionsImmunity, HerdCandida albicansDisease Models, AnimalGerm-Free LifeVaccinesVaccines, DNACecumLymphoid TissueSalivaDuodenumJejunumImmunologic MemoryTranscytosisSignal TransductionLungTime FactorsViral VaccinesToll-Like ReceptorsIntestine, Large16,16-Dimethylprostaglandin E2Laryngeal MucosaAntibody FormationTh1 CellsEscherichia coliInflammationEnzyme-Linked Immunosorbent AssayCell LinePeyer's PatchesBacteriaAdministration, OralCheekBacterial TranslocationRectumB-LymphocytesCholera ToxinReceptors, FcOrthomyxoviridae InfectionsGastrointestinal TractMacrophagesIntestinal Absorption