Otitis MediaPneumococcal InfectionsOtitis Media with EffusionStreptococcus pneumoniaeOtitis Media, SuppurativePneumonia, PneumococcalEar, MiddlePneumococcal VaccinesOtitis ExternaMeningitis, PneumococcalStreptolysinsChinchillaMiddle Ear VentilationEustachian TubeVaccines, ConjugateOtitisNasopharynxSerotypingAntibodies, BacterialBacteremiaBacterial VaccinesOtoscopyHaemophilus influenzaeCulture MediaPenicillin ResistanceMastoiditisPolysaccharides, BacterialHaemophilus InfectionsVaccinationAnti-Bacterial AgentsAcute DiseasePenicillinsAcoustic Impedance TestsBacterial ProteinsTympanic Membrane PerforationTympanic MembraneMoraxellaceae InfectionsPhosphorylcholineLabyrinthitisAdministration, IntranasalBacterial CapsulesMoraxella (Branhamella) catarrhalisMicrobial Sensitivity TestsAntigens, BacterialCarrier StateAmoxicillin-Potassium Clavulanate CombinationCholesteatoma, Middle EarOtolaryngologySplenectomyImmunoglobulin GComplement C4LungTympanoplastyAmoxicillinOtoscopesEar DiseasesDisease Models, AnimalImmunizationAdenoidsCommunity-Acquired InfectionsMice, Inbred BALB CMastoidImmunization, PassiveOpsonin ProteinsAnemia, Sickle CellHearing LossRespiratory Tract InfectionsDrug Resistance, BacterialSepsisSulfisoxazoleMice, Inbred CBAVirulenceProspective StudiesEaracheDiagnostic Techniques, OtologicalEar CanalInfant, NewbornTime FactorsDisease SusceptibilityComplement System ProteinsDrug Resistance, MicrobialMice, Inbred C57BLIncidenceNeisseriaceae InfectionsAdenoidectomyDNA, BacterialRecurrencePneumoniaChild Day Care CentersAge FactorsSinusitisEnzyme-Linked Immunosorbent AssayAzithromycinHearing TestsPhagocytosisPopulation SurveillanceCefaclorChronic DiseaseXylitolMucous Membrane