Streptococcus pneumoniaePhagocytosisStreptococcusPneumococcal InfectionsKlebsiella pneumoniaeStreptococcus pyogenesStreptococcus mutansMycoplasma pneumoniaePneumonia, PneumococcalStreptococcal InfectionsStreptococcus agalactiaeBacterial ProteinsAnti-Bacterial AgentsMicrobial Sensitivity TestsPenicillin ResistanceNasopharynxStreptolysinsSerotypingMeningitis, PneumococcalStreptococcus mitisBacterial CapsulesPneumococcal VaccinesDrug Resistance, BacterialStreptococcus oralisPenicillinsStreptococcus suisOpsonin ProteinsFluoroquinolonesAnti-Infective AgentsErythromycinStreptococcus PhagesDNA, BacterialMacrolidesN-Acetylmuramoyl-L-alanine AmidaseDrug Resistance, MicrobialStreptococcus bovisHaemophilus influenzaeOtitis MediaAntibodies, BacterialKlebsiella InfectionsPneumonia, MycoplasmaPolysaccharides, BacterialKetolidesStreptococcus equiTransformation, BacterialMolecular Sequence DataCefotaximeGenes, BacterialCarrier StateMoraxella (Branhamella) catarrhalisLevofloxacinPenicillin-Binding ProteinsCeftriaxoneDNA Topoisomerase IVStreptococcus sobrinusAntigens, BacterialRespiratory Tract InfectionsAminoacyltransferasesOfloxacinNaphthyridinesVirulenceBacterial AdhesionBacteremiaGram-Positive BacteriaMeningitis, BacterialCephalosporinsPneumonia, BacterialColony Count, MicrobialStreptococcal VaccinesVaccines, ConjugateStreptococcus gordoniiGene Expression Regulation, BacterialChlamydophila InfectionsNeutrophilsCommunity-Acquired InfectionsStreptococcus thermophilusAza CompoundsDrug Resistance, Multiple, BacterialDNA GyraseEnterococcus faecalisBacterial Typing TechniquesSequence Analysis, DNAHexosyltransferasesMacrophagesBacteriaPolymerase Chain ReactionCulture MediaPeptidyl TransferasesMutationElectrophoresis, Gel, Pulsed-FieldMuramoylpentapeptide CarboxypeptidaseNasopharyngeal DiseasesAmino Acid SequenceHaemophilus InfectionsAdhesins, BacterialQuinolonesCiprofloxacinStaphylococcus aureusAzithromycinImmunoglobulin G