Otitis MediaOtitis Media with EffusionOtitis Media, SuppurativeEar, MiddleOtitis ExternaChinchillaMiddle Ear VentilationEustachian TubeOtitisOtoscopyHaemophilus influenzaeCulture MediaMastoiditisHaemophilus InfectionsPneumococcal InfectionsAcute DiseaseAcoustic Impedance TestsTympanic Membrane PerforationTympanic MembraneMoraxellaceae InfectionsLabyrinthitisStreptococcus pneumoniaeNasopharynxMoraxella (Branhamella) catarrhalisAmoxicillin-Potassium Clavulanate CombinationCholesteatoma, Middle EarOtolaryngologyTympanoplastyAmoxicillinOtoscopesEar DiseasesAdenoidsMastoidHearing LossRespiratory Tract InfectionsSulfisoxazoleEaracheDiagnostic Techniques, OtologicalEar CanalPneumococcal VaccinesVaccines, ConjugateNeisseriaceae InfectionsAdenoidectomyRecurrenceAnti-Bacterial AgentsChild Day Care CentersSinusitisAzithromycinHearing TestsCefaclorChronic DiseaseXylitolMucous MembraneExudates and TransudatesMass MediaAudiometryDisease Models, AnimalOtologic Surgical ProceduresNasopharyngeal DiseasesBacterial InfectionsAntibodies, BacterialStreptolysinsCefuroximeFacial ParalysisHaemophilus VaccinesMyringoplastyHuman bocavirusCerumenHearing Loss, ConductiveEar OssiclesCulture Media, Conditioned