Streptococcus pneumoniaeStreptococcusSepsisPneumococcal InfectionsKlebsiella pneumoniaeStreptococcus pyogenesStreptococcus mutansMycoplasma pneumoniaePneumonia, PneumococcalStreptococcal InfectionsStreptococcus agalactiaeAnti-Bacterial AgentsBacterial ProteinsMicrobial Sensitivity TestsPenicillin ResistanceNasopharynxStreptolysinsSerotypingMeningitis, PneumococcalStreptococcus mitisBacterial CapsulesPneumococcal VaccinesDrug Resistance, BacterialStreptococcus oralisPenicillinsAnti-Infective AgentsStreptococcus suisFluoroquinolonesErythromycinStreptococcus PhagesDNA, BacterialMacrolidesN-Acetylmuramoyl-L-alanine AmidaseDrug Resistance, MicrobialStreptococcus bovisHaemophilus influenzaeOtitis MediaAntibodies, BacterialKlebsiella InfectionsPneumonia, MycoplasmaKetolidesStreptococcus equiTransformation, BacterialCefotaximeCarrier StatePolysaccharides, BacterialGenes, BacterialMolecular Sequence DataBacteremiaMoraxella (Branhamella) catarrhalisCeftriaxoneLevofloxacinPenicillin-Binding ProteinsDNA Topoisomerase IVStreptococcus sobrinusOfloxacinAminoacyltransferasesRespiratory Tract InfectionsNaphthyridinesGram-Positive BacteriaMeningitis, BacterialAntigens, BacterialCephalosporinsPneumonia, BacterialColony Count, MicrobialStreptococcal VaccinesVirulenceBacterial AdhesionVaccines, ConjugateStreptococcus gordoniiCommunity-Acquired InfectionsChlamydophila InfectionsGene Expression Regulation, BacterialStreptococcus thermophilusDrug Resistance, Multiple, BacterialAza CompoundsBacterial Typing TechniquesDNA GyraseHexosyltransferasesSequence Analysis, DNAPolymerase Chain ReactionEnterococcus faecalisBacteriaPeptidyl TransferasesElectrophoresis, Gel, Pulsed-FieldMuramoylpentapeptide CarboxypeptidaseCulture MediaNasopharyngeal DiseasesCiprofloxacinQuinolonesHaemophilus InfectionsBacterial InfectionsMutationAdhesins, BacterialBacteriological TechniquesPharynxAzithromycinOpsonin ProteinsAmino Acid SequenceChild Day Care Centers