Otitis MediaOtitis Media, SuppurativeOtitis Media with EffusionTympanic Membrane PerforationEar, MiddleOtitis ExternaCholesteatoma, Middle EarChinchillaMiddle Ear VentilationEustachian TubeOtitisOtoscopyHaemophilus influenzaeCulture MediaMastoiditisHaemophilus InfectionsPneumococcal InfectionsAcute DiseaseAcoustic Impedance TestsTympanic MembraneMoraxellaceae InfectionsLabyrinthitisStreptococcus pneumoniaeNasopharynxMoraxella (Branhamella) catarrhalisAmoxicillin-Potassium Clavulanate CombinationOtolaryngologyTympanoplastyAmoxicillinOtoscopesEar 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