Otitis MediaStreptococcus pneumoniaeOtitis Media with EffusionPneumococcal InfectionsEar, MiddleOtitis Media, SuppurativeStreptococcusNasopharynxMiddle Ear VentilationAcute DiseaseOtitis ExternaHaemophilus influenzaeEustachian TubeMoraxella (Branhamella) catarrhalisAnti-Bacterial AgentsStreptococcus pyogenesKlebsiella pneumoniaeOtoscopyAmoxicillin-Potassium Clavulanate CombinationChinchillaPneumococcal VaccinesHaemophilus InfectionsStreptococcus mutansOtitisTympanic MembranePneumonia, PneumococcalMoraxellaceae InfectionsAmoxicillinMycoplasma pneumoniaeStreptolysinsPenicillin ResistanceSerotypingMicrobial Sensitivity TestsBacterial ProteinsRespiratory Tract InfectionsStreptococcal InfectionsOtolaryngologyMastoiditisStreptococcus agalactiaeTympanic Membrane PerforationPenicillinsVaccines, ConjugateChild Day Care CentersBacterial CapsulesMeningitis, PneumococcalAzithromycinCulture MediaCefaclorAcoustic Impedance TestsDrug Resistance, BacterialLabyrinthitisOtoscopesCarrier StateStreptococcus mitisEaracheAntibodies, BacterialAnti-Infective AgentsCefuroximeDNA, BacterialXylitolNasopharyngeal DiseasesErythromycinStreptococcus oralisDrug Resistance, MicrobialCephalosporinsFluoroquinolonesStreptococcus suisCeftriaxoneSulfisoxazoleMacrolidesStreptococcus PhagesNeisseriaceae InfectionsHuman bocavirusRecurrenceBacterial InfectionsMicrobial InteractionsDiagnostic Techniques, OtologicalN-Acetylmuramoyl-L-alanine AmidaseStreptococcus bovisSinusitisMolecular Sequence DataAntigens, BacterialVirulenceColony Count, MicrobialGenes, BacterialPolysaccharides, BacterialExudates and TransudatesKlebsiella InfectionsPneumonia, MycoplasmaKetolidesTransformation, BacterialStreptococcus equiCefotaximeInfant, NewbornPolymerase Chain ReactionBacterial Typing TechniquesBacteriaClavulanic AcidMeningitis, BacterialPharyngitis