Immune SeraImmunization, PassiveSerumImmune SystemAntibodies, BacterialImmunoglobulin GOpsonin ProteinsImmunity, Maternally-AcquiredPhagocytosisAntigen-Antibody ComplexSerum AlbuminAntibody FormationAntibodies, ViralTyphus, Epidemic Louse-BorneBlood Bactericidal ActivityComplement System ProteinsMice, Inbred BALB CRabbitsSerum GlobulinsImmunity, CellularImmunizationTyphus, Endemic Flea-BorneSpleenImmune ToleranceMacrophagesAntibody SpecificityAntigens, BacterialAntibodiesImmunoglobulin MImmunityLeptospira interrogans serovar icterohaemorrhagiaeMice, Inbred C57BLEnzyme-Linked Immunosorbent AssayNeutralization TestsTreponema pallidumT-LymphocytesDose-Response Relationship, ImmunologicCoxiellaTime FactorsImmunoglobulinsImmunity, InnateCross ReactionsHepatitis AChromium IsotopesStreptococcal VaccinesCells, CulturedSerum Albumin, BovineNeutrophilsBacterial VaccinesEpitopesErythrocytesAntigensGuinea PigsImmunodiffusionImmunologic TechniquesImmune EvasionHypersensitivity, DelayedFluorescent Antibody TechniqueHemagglutination TestsDisease Models, AnimalLymphocytesAntibodies, MonoclonalCytokinesMice, Inbred StrainsAntigen-Antibody ReactionsMolecular Sequence DataB-LymphocytesVaccinationImmunoelectrophoresisMalariaLyme DiseaseCattleSyphilisCell LineHorsesAscitic FluidAntibodies, ProtozoanEnterovirusLymphocyte ActivationImmune Complex DiseasesLuminescent MeasurementsImmune System DiseasesAgglutination TestsAntigens, SurfaceBiological MarkersAntibody-Dependent Cell CytotoxicityAmino Acid SequenceBacterial Outer Membrane ProteinsSpecies SpecificityPlasmodium falciparumInterferon-gammaCytotoxicity Tests, ImmunologicPolysaccharides, BacterialMicroscopy, ElectronMice, SCIDImmunoglobulin AAntigens, ProtozoanDendritic CellsLungBacterial Proteins