Streptococcus pneumoniaeStreptococcusPneumococcal InfectionsKlebsiella pneumoniaeStreptococcus pyogenesStreptococcus mutansMycoplasma pneumoniaePneumonia, PneumococcalStreptococcal InfectionsStreptococcus agalactiaeAnti-Bacterial AgentsBacterial ProteinsMicrobial Sensitivity TestsPenicillin ResistanceNasopharynxStreptolysinsSerotypingMeningitis, PneumococcalStreptococcus mitisBacterial CapsulesPneumococcal VaccinesDrug Resistance, BacterialStreptococcus oralisPenicillinsStreptococcus suisAnti-Infective AgentsFluoroquinolonesErythromycinStreptococcus PhagesDNA, BacterialMacrolidesN-Acetylmuramoyl-L-alanine AmidaseDrug Resistance, MicrobialStreptococcus bovisHaemophilus influenzaeOtitis MediaAntibodies, BacterialKlebsiella InfectionsPneumonia, MycoplasmaKetolidesStreptococcus equiTransformation, BacterialCefotaximeCarrier StatePolysaccharides, BacterialGenes, BacterialMolecular Sequence DataMoraxella (Branhamella) catarrhalisCeftriaxoneLevofloxacinPenicillin-Binding ProteinsGram-Positive BacteriaDNA Topoisomerase IVStreptococcus sobrinusOfloxacinAminoacyltransferasesRespiratory Tract InfectionsNaphthyridinesBacteremiaAntigens, BacterialMeningitis, BacterialCephalosporinsPneumonia, BacterialColony Count, MicrobialStreptococcal VaccinesBacterial AdhesionVaccines, ConjugateVirulenceStreptococcus gordoniiChlamydophila InfectionsGene Expression Regulation, BacterialCommunity-Acquired InfectionsStreptococcus thermophilusAza CompoundsDrug Resistance, Multiple, BacterialBacteriaBacterial Typing TechniquesDNA GyraseSequence Analysis, DNAHexosyltransferasesEnterococcus faecalisPolymerase Chain ReactionPeptidyl TransferasesCulture MediaElectrophoresis, Gel, Pulsed-FieldMuramoylpentapeptide CarboxypeptidaseBacteriological TechniquesNasopharyngeal DiseasesGram-Negative BacteriaCiprofloxacinQuinolonesHaemophilus InfectionsMutationPharynxAzithromycinAmino Acid SequenceAdhesins, BacterialOpsonin ProteinsChild Day Care CentersBlood