CyclacillinPenicillin ResistancePenicillinsPenicillin GStreptococcus pneumoniaePenicillin VPneumococcal InfectionsPenicillin-Binding ProteinsAnti-Bacterial AgentsMicrobial Sensitivity TestsMuramoylpentapeptide CarboxypeptidaseDrug Resistance, MicrobialHexosyltransferasesPeptidyl TransferasesDrug Resistance, BacterialPenicillin G ProcainePenicillinasePenicillin AmidaseNeisseria gonorrhoeaePenicillin G BenzathineLactamsAminoacyltransferasesSerotypingDrug ResistanceDrug Resistance, MultipleBacterial ProteinsErythromycinDrug Resistance, Multiple, Bacterialbeta-LactamasesTransformation, BacterialStreptococcal InfectionsMacrolidesAmpicillinCarrier ProteinsTetracyclineNasopharynxPneumococcal VaccinesCefotaximeOxacillinAmino AcidsStreptococcusbeta-LactamsDrug Resistance, NeoplasmTransformation, GeneticMoraxella (Branhamella) catarrhalisMutationPneumonia, PneumococcalMolecular Sequence DataDNA, BacterialGenes, BacterialR FactorsStaphylococcusPlasmidsStaphylococcus aureusSequence Homology, Amino AcidCarrier StateDisease ResistanceRespiratory Tract InfectionsElectrophoresis, Gel, Pulsed-Field