Haemophilus influenzaeHaemophilus InfectionsHaemophilusHaemophilus influenzae type bHaemophilus VaccinesMeningitis, HaemophilusHaemophilus ducreyiEscherichia coli ProteinsOtitis MediaChinchillaEscherichia coliMoraxella (Branhamella) catarrhalisAmpicillinBacterial ProteinsDNA, BacterialBacterial Outer Membrane ProteinsGenes, BacterialBacterial CapsulesAmpicillin ResistanceMolecular Sequence DataPolysaccharides, BacterialMicrobial Sensitivity TestsEscherichia coli InfectionsVaccines, ConjugateStreptococcus pneumoniaeAnti-Bacterial AgentsAntibodies, BacterialHaemophilus parasuisHaemophilus parainfluenzaeBase SequenceTransformation, BacterialAmino Acid SequenceNasopharynxCloning, Molecularbeta-LactamasesPlasmidsAmoxicillin-Potassium Clavulanate CombinationChloramphenicolMutationRespiratory Tract InfectionsVaccines, CombinedBacterial AdhesionChancroidDrug Resistance, MicrobialCephalosporinsEpiglottitisCulture MediaEscherichia coli O157Diphtheria ToxoidCefaclorSerotypingDiphtheria-Tetanus-Pertussis VaccineBlood Bactericidal ActivityMeningitis, BacterialPenicillin ResistanceHaemophilus somnusMeningitisTetanus ToxoidEar, MiddleFimbriae, BacterialGene Expression Regulation, BacterialBacteriaAntigens, BacterialOropharynxPurpuraMoraxellaceae InfectionsTransformation, GeneticAdhesins, BacterialCarrier StateImmunization ScheduleCefuroximeOtitis Media with EffusionTransferrin-Binding ProteinsCounterimmunoelectrophoresisChromosomes, BacterialNeisseria meningitidisPoliovirus Vaccine, InactivatedLipopolysaccharidesPneumococcal InfectionsCefotaximeChloramphenicol ResistanceDrug Resistance, BacterialBacterial VaccinesOperonEscherichia coli K12Penicillin-Binding ProteinsTrimethoprimVirulenceErythromycinAzithromycinAnti-Infective AgentsKetolidesCefiximeSpecies SpecificityBacterial Typing TechniquesSequence Homology, Amino AcidAmoxicillinPharynxGenetic Complementation TestGram-Negative Bacteria