Haemophilus influenzaeHaemophilus InfectionsHaemophilus influenzae type bHaemophilus VaccinesBacterial CapsulesSerotypingMeningitis, HaemophilusPolysaccharides, BacterialStreptococcus pneumoniaeHaemophilusOtitis MediaMoraxella (Branhamella) catarrhalisNasopharynxBacterial Outer Membrane ProteinsPneumococcal InfectionsChinchillaAntibodies, BacterialDNA, BacterialVaccines, ConjugateAmpicillinMicrobial Sensitivity TestsBacterial ProteinsAnti-Bacterial AgentsAmpicillin ResistanceMolecular Sequence DataGenes, BacterialAntigens, BacterialBacterial Typing TechniquesPneumococcal VaccinesActinobacillus pleuropneumoniaeCarrier StateRespiratory Tract InfectionsVirulencePenicillin ResistanceElectrophoresis, Gel, Pulsed-FieldStreptococcus suisMeningitis, BacterialBacterial AdhesionMoraxellaceae InfectionsStreptococcal InfectionsTransformation, BacterialBase SequencePurpurabeta-LactamasesAmoxicillin-Potassium Clavulanate CombinationAmino Acid SequenceSequence Analysis, DNAMeningitisBacterial VaccinesNeisseria meningitidisEpiglottitisBlood Bactericidal ActivityHaemophilus parainfluenzaeVaccines, CombinedDrug Resistance, MicrobialCross ReactionsOropharynxSalmonella entericaDrug Resistance, BacterialDiphtheria ToxoidSalmonella InfectionsMeningitis, PneumococcalPolymerase Chain ReactionRotavirusFimbriae, BacterialBluetongue virusTransferrin-Binding ProteinsCephalosporinsChloramphenicol