Streptococcus pneumoniaeStreptococcusPneumococcal InfectionsAnti-Bacterial AgentsMicrobial Sensitivity TestsKlebsiella pneumoniaeStreptococcus pyogenesStreptococcus mutansMycoplasma pneumoniaePneumonia, PneumococcalStreptococcal InfectionsDrug Resistance, BacterialPenicillin ResistanceBacterial ProteinsStreptococcus agalactiaeSerotypingNasopharynxDrug Resistance, MicrobialStreptolysinsPenicillinsMeningitis, PneumococcalErythromycinAnti-Infective AgentsStreptococcus mitisDNA, BacterialPneumococcal VaccinesBacterial CapsulesFluoroquinolonesMacrolidesStreptococcus oralisStreptococcus suisDrug Resistance, Multiple, BacterialStreptococcus PhagesKlebsiella InfectionsHaemophilus influenzaeN-Acetylmuramoyl-L-alanine AmidaseOtitis MediaGenes, BacterialCefotaximeBacteriaStreptococcus bovisMolecular Sequence DataCarrier StateCephalosporinsGram-Positive BacteriaCeftriaxoneBacteremiaAntibodies, BacterialKetolidesCiprofloxacinPenicillin-Binding ProteinsLevofloxacinPneumonia, MycoplasmaOfloxacinTransformation, BacterialBacterial Typing TechniquesStreptococcus equiPolysaccharides, BacterialCulture MediaStaphylococcus aureusMoraxella (Branhamella) catarrhalisColony Count, MicrobialElectrophoresis, Gel, Pulsed-FieldBacterial InfectionsCommunity-Acquired InfectionsPneumonia, BacterialGram-Negative BacteriaRespiratory Tract InfectionsDNA Topoisomerase IVPolymerase Chain ReactionTetracyclinebeta-LactamsNaphthyridinesAminoacyltransferasesStreptococcus sobrinusGene Expression Regulation, BacterialVirulenceSequence Analysis, DNAMeningitis, BacterialAntigens, BacterialEnterococcus faecalisEscherichia colibeta-LactamasesDNA GyraseAzithromycinClindamycinMutationPeptidyl TransferasesPenicillin GQuinolonesAmoxicillinLactamsAntibiotic ProphylaxisBacterial AdhesionBacteriological TechniquesAza CompoundsChloramphenicol ResistanceStreptococcal VaccinesCefuroximeDisease Susceptibility