Haemophilus influenzaeHaemophilus InfectionsHaemophilusHaemophilus influenzae type bHaemophilus VaccinesMeningitis, HaemophilusBacteriaHaemophilus ducreyiOtitis MediaChinchillaMoraxella (Branhamella) catarrhalisAmpicillinBacterial CapsulesBacterial Outer Membrane ProteinsDNA, BacterialAmpicillin ResistancePolysaccharides, BacterialMicrobial Sensitivity TestsStreptococcus pneumoniaeBacterial ProteinsVaccines, ConjugateAnti-Bacterial AgentsAntibodies, BacterialHaemophilus parasuisHaemophilus parainfluenzaeGram-Negative BacteriaGram-Positive BacteriaMolecular Sequence DataGenes, BacterialNasopharynxTransformation, BacterialRespiratory Tract InfectionsAmoxicillin-Potassium Clavulanate CombinationVaccines, CombinedChancroidbeta-LactamasesEpiglottitisBacterial AdhesionCephalosporinsDiphtheria ToxoidCulture MediaChloramphenicolCefaclorHaemophilus somnusDiphtheria-Tetanus-Pertussis VaccineEscherichia coliBlood Bactericidal ActivityEar, MiddleMeningitis, BacterialTetanus ToxoidPenicillin ResistanceBacteria, AnaerobicMeningitisDrug Resistance, MicrobialOropharynxPurpuraMoraxellaceae InfectionsAmino Acid SequenceAntigens, BacterialSerotypingBacteria, AerobicCefuroximeBase SequenceCarrier StateImmunization ScheduleOtitis Media with EffusionNeisseria meningitidisTransferrin-Binding ProteinsPneumococcal InfectionsCounterimmunoelectrophoresisPoliovirus Vaccine, InactivatedTransformation, GeneticBacterial Typing TechniquesAdhesins, BacterialLipopolysaccharidesBacterial InfectionsFimbriae, BacterialSequence Analysis, DNACefotaximeBacterial VaccinesPhylogenyChloramphenicol ResistanceRNA, Ribosomal, 16SBacteriological TechniquesAzithromycinKetolidesErythromycinPharynxDrug Resistance, BacterialSpecies SpecificityCloning, MolecularAnti-Infective AgentsAmoxicillinSputumCefiximeTrimethoprimConjunctivitis, BacterialVirulenceMutationColony Count, Microbial