Opsonin ProteinsAntibodiesPhagocytosisAntibodies, BacterialAntibody SpecificityAntibodies, ViralComplement C3Antibodies, MonoclonalComplement System ProteinsComplement ActivationComplement Pathway, ClassicalComplement Pathway, AlternativeAntibody FormationAntibodies, NeutralizingBlood Bactericidal ActivityNeutrophilsComplement C3bComplement C2Immunoglobulin GFluorescent Antibody TechniqueAntibody AffinityAntibodies, FungalEpitopesImmunoglobulin MAntibodies, Anti-IdiotypicComplement C3cBinding Sites, AntibodyLuminescent MeasurementsReceptors, ComplementHIV AntibodiesAntigen-Antibody ComplexAntigens, BacterialImmune SeraAntibodies, NeoplasmAntibodies, ProtozoanAntibodies, AntinuclearComplement Fixation TestsProperdinCross ReactionsImmunoglobulin Fab FragmentsPolysaccharides, BacterialMacrophage-1 AntigenZymosanMice, Inbred BALB CMacrophagesRespiratory BurstMolecular Sequence DataRabbitsBacterial CapsulesStreptococcus pneumoniaeAutoantibodiesComplement C1Streptococcus pyogenesStaphylococcus aureusPhagocytesStreptococcus agalactiaeNeutralization TestsCollectinsBacterial Outer Membrane ProteinsImmunization, PassiveCryptococcusAntigen-Antibody ReactionsAntibodies, BispecificComplement C1qComplement Factor BImmunoglobulin IsotypesReceptors, Complement 3bStaphylococcal Protein AAntigens, SurfaceImmunoglobulinsSingle-Chain AntibodiesAntibodies, BlockingReceptors, IgGAmino Acid SequenceCells, CulturedPrevotella melaninogenicaCryptococcus neoformansEnzyme-Linked Immunosorbent AssayAntibodies, HeterophileCell LineBacterial ProteinsAntibodies, CatalyticEscherichia coliMannansRecombinant ProteinsBacterial VaccinesImmunoglobulin AFlow CytometryPhagosomesErythrocytesAntibodies, Monoclonal, HumanizedFluorescent Antibody Technique, IndirectHybridomasDose-Response Relationship, ImmunologicMannose-Binding LectinEpitope MappingKineticsAntibodies, AntiphospholipidCarrier ProteinsComplement C4