Streptococcus pneumoniaePneumonia, BacterialStreptococcusPneumonia, PneumococcalPneumococcal InfectionsPneumoniaKlebsiella pneumoniaeStreptococcus pyogenesStreptococcus mutansMycoplasma pneumoniaeAnti-Bacterial AgentsPneumonia, ViralStreptococcal InfectionsCommunity-Acquired InfectionsStreptococcus agalactiaeBacterial ProteinsMicrobial Sensitivity TestsNasopharynxPenicillin ResistanceStreptolysinsKlebsiella InfectionsSerotypingPneumonia, MycoplasmaMeningitis, PneumococcalAnti-Infective AgentsPneumonia, StaphylococcalStreptococcus mitisPneumonia, PneumocystisPneumococcal VaccinesLungBacterial CapsulesDrug Resistance, BacterialPenicillinsStreptococcus oralisHaemophilus influenzaeDNA, BacterialFluoroquinolonesErythromycinStreptococcus suisMacrolidesStreptococcus PhagesDrug Resistance, MicrobialN-Acetylmuramoyl-L-alanine AmidaseBacteriaCryptogenic Organizing PneumoniaStreptococcus bovisOtitis MediaPneumonia, Ventilator-AssociatedTrimethoprim-Sulfamethoxazole CombinationAntibodies, BacterialBronchoalveolar Lavage FluidHaemophilus InfectionsMolecular Sequence DataKetolidesCarrier StateCefotaximeStreptococcus equiGenes, BacterialTransformation, BacterialCeftriaxonePolysaccharides, BacterialRespiratory Tract InfectionsLevofloxacinMoraxella (Branhamella) catarrhalisBacteremiaPenicillin-Binding ProteinsOfloxacinDNA Topoisomerase IVStreptococcus sobrinusBacterial InfectionsColony Count, MicrobialNaphthyridinesAntigens, BacterialAminoacyltransferasesCephalosporinsGram-Positive BacteriaSequence Analysis, DNAMeningitis, BacterialAIDS-Related Opportunistic InfectionsVaccines, ConjugateSuperinfectionEmpiricismVirulenceBacterial LoadBacterial AdhesionChlamydophila InfectionsPolymerase Chain ReactionStreptococcal VaccinesInfluenza, HumanStreptococcus gordoniiCommunity Health ServicesDrug Resistance, Multiple, BacterialCross InfectionStaphylococcus aureusAza CompoundsOrthomyxoviridae InfectionsGene Expression Regulation, BacterialNeutrophilsProspective StudiesBacterial Typing Techniques