Immunologic MemoryMemoryMemory DisordersMemory, Short-TermMemory, Long-TermImmunization, SecondaryMemory, EpisodicAntibody FormationMental RecallVaccines, ConjugateCD8-Positive T-LymphocytesB-LymphocytesMeningococcal VaccinesMice, Inbred C57BLCD4-Positive T-LymphocytesLymphocyte ActivationImmunizationT-LymphocytesImmunity, CellularImmunoglobulin GAntibodies, BacterialMaze LearningNeuropsychological TestsRetention (Psychology)Recognition (Psychology)Thoracic DuctTetanus ToxoidTime FactorsAntibody-Producing CellsHippocampusT-Lymphocyte SubsetsSpleenAntigensAntigens, CD27LearningHemolytic Plaque TechniqueVaccinationAssociation LearningInterferon-gammagamma-GlobulinsAntibody AffinityAmnesiaVerbal LearningImmunity, Maternally-AcquiredMice, TransgenicImmunity, InnateFearAdoptive TransferEpitopes, T-LymphocyteHaemophilus influenzae type bSpatial BehaviorImmunization ScheduleMice, KnockoutCognitionMice, Inbred BALB CImmunophenotypingAvoidance LearningConditioning (Psychology)Cells, CulturedReaction TimeModels, ImmunologicalHemocyaninT-Lymphocytes, CytotoxicFlow CytometryAdjuvants, ImmunologicCytotoxicity, ImmunologicGerminal CenterPolysaccharides, BacterialLymphocyte CountMagnetic Resonance ImagingNeisseria meningitidisImmunization, PassiveB-Lymphocyte SubsetsAdaptive ImmunityAnalysis of VarianceImmune ToleranceHaemophilus VaccinesImmunoglobulin MConditioning, ClassicalBrainPsychomotor PerformanceCognition DisordersCytokinesBehavior, AnimalLymphocytesAttentionCell DifferentiationPrefrontal CortexBrain MappingEnzyme-Linked Immunosorbent AssayHaptensAntibodies, ViralCuesDisease Models, AnimalAntigens, BacterialAmygdalaMice, Inbred StrainsLymph NodesTemporal LobeRepression, Psychology