Otitis MediaOtitis Media with EffusionOtitis Media, SuppurativeEar, MiddleOtitis ExternaChinchillaMiddle Ear VentilationCircovirusEustachian TubeCircoviridae InfectionsOtitisPneumococcal InfectionsOtoscopyHaemophilus influenzaeCulture MediaMastoiditisPneumococcal VaccinesStreptococcus pneumoniaeHaemophilus InfectionsAcute DiseaseAcoustic Impedance TestsTympanic Membrane PerforationTympanic MembraneNasopharynxMoraxellaceae InfectionsLabyrinthitisVaccines, ConjugateMoraxella (Branhamella) catarrhalisPorcine Postweaning Multisystemic Wasting SyndromeAmoxicillin-Potassium Clavulanate CombinationWasting SyndromeCholesteatoma, Middle EarOtolaryngologyTympanoplastyAmoxicillinOtoscopesEar DiseasesSwine DiseasesAdenoidsMastoidHearing LossRespiratory Tract InfectionsSulfisoxazoleEaracheDiagnostic Techniques, OtologicalEar CanalSwineSerotypingAnti-Bacterial AgentsRecurrenceNeisseriaceae InfectionsAdenoidectomyChild Day Care CentersChoroid DiseasesSinusitisAzithromycinHearing TestsParvovirus, PorcineCefaclorExudates and TransudatesAntibodies, BacterialChronic DiseaseMeningococcal VaccinesCarrier StateDisease Models, AnimalXylitolMucous MembraneMass MediaAudiometryHaemophilus VaccinesOtologic Surgical ProceduresNasopharyngeal DiseasesBacterial InfectionsInfant, NewbornVaccinationStreptolysinsCefuroximePenicillinsFacial ParalysisMyringoplastyHuman bocavirusLomustineProspective StudiesCerumenTime FactorsHearing Loss, ConductiveEar OssiclesCulture Media, Conditioned