Haemophilus InfectionsHaemophilus VaccinesHaemophilus influenzae type bHaemophilus influenzaeHaemophilusMeningitis, HaemophilusEpiglottitisHaemophilus ducreyiVaccines, ConjugateBacterial CapsulesHaemophilus parasuisChancroidHaemophilus parainfluenzaeHaemophilus somnusVaccines, CombinedPolysaccharides, BacterialDiphtheria-Tetanus-Pertussis VaccineAntibodies, BacterialBacterial Outer Membrane ProteinsAmpicillinOtitis MediaChinchillaImmunization ScheduleMoraxella (Branhamella) catarrhalisPoliovirus Vaccine, InactivatedTetanus ToxoidAmpicillin ResistanceStreptococcus pneumoniaeDNA, BacterialMicrobial Sensitivity TestsActinobacillusDiphtheria ToxoidHaemophilus paragallinarumAnti-Bacterial AgentsBacterial ProteinsOropharynxMeningitis, BacterialVaccinationPleuropneumoniaGenes, BacterialDiphtheria-Tetanus-acellular Pertussis Vaccines