Microscopy, Electron, ScanningTime FactorsMicroscopy, ElectronPhenotypeMice, Inbred BALB CCells, CulturedMice, Inbred C57BLDisease Models, AnimalMolecular Sequence DataImmunizationMutationMicroscopy, Electron, TransmissionViral VaccinesBronchial Provocation TestsModels, BiologicalPhylogenySpecies SpecificityVaccinationLungBiological EvolutionFossilsCell LineCell SizeImmunohistochemistryCell DifferentiationVaccines, AttenuatedDendritesVaccines, SyntheticBacterial VaccinesMice, KnockoutNeuronsSkullAntibodies, ViralMicroscopy, ConfocalAlgorithmsAdministration, IntranasalAmino Acid SequenceMorphogenesisImage Processing, Computer-AssistedSignal TransductionImmunization, PassiveImaging, Three-DimensionalMicroscopy, FluorescenceCell DivisionPregnancyReproducibility of ResultsSpermatozoaCell CountAsthmaDendritic SpinesBase SequenceMicroscopySequence Analysis, DNARats, Sprague-DawleyActinsBrainMicroscopy, Phase-ContrastCulture MediaCell MovementStaining and LabelingAnimals, NewbornSwineCytoskeletonVaccines, DNASurface PropertiesAntibodies, BacterialAnalysis of VarianceBiomechanical PhenomenaRNA, MessengerMice, TransgenicMagnetic Resonance ImagingCell AdhesionSperm MotilityApoptosisCattleGene ExpressionSpleenGene Expression ProfilingCell ProliferationEpithelial CellsCell SurvivalImmunoglobulin GLarvaMacaca mulattaCytokinesAerosolsMembrane ProteinsCell Culture TechniquesGreen Fluorescent ProteinsBacterial ProteinsDose-Response Relationship, DrugAnatomy, ComparativeMitochondriaSperm CountAdaptation, PhysiologicalLipopolysaccharidesOrganelle ShapeMandibleVirulenceRabbits