CyclacillinPenicillin ResistancePenicillinsPenicillin GStreptococcus pneumoniaePenicillin VPneumococcal InfectionsPenicillin-Binding ProteinsAnti-Bacterial AgentsMicrobial Sensitivity TestsMuramoylpentapeptide CarboxypeptidaseDrug Resistance, MicrobialHexosyltransferasesPeptidyl TransferasesDrug Resistance, BacterialPlasmidsPenicillinasePenicillin G ProcainePenicillin AmidaseNeisseria gonorrhoeaeBacterial ProteinsPenicillin G BenzathineLactamsTransformation, BacterialSerotypingAminoacyltransferasesDrug ResistanceDrug Resistance, MultipleDNA, BacterialDrug Resistance, Multiple, BacterialErythromycinR Factorsbeta-LactamasesGenes, BacterialMolecular Sequence DataAmpicillinTetracyclineTransformation, GeneticMacrolidesEscherichia coliStreptococcal InfectionsCarrier ProteinsMutationBase SequenceCefotaximeStreptococcusNasopharynxAmino AcidsPneumococcal VaccinesOxacillinbeta-LactamsDrug Resistance, NeoplasmMoraxella (Branhamella) catarrhalisPneumonia, PneumococcalStaphylococcusConjugation, GeneticCloning, MolecularSequence Homology, Amino AcidStaphylococcus aureusElectrophoresis, Gel, Pulsed-FieldAmino Acid SequenceCarrier StateDisease ResistancePolymerase Chain ReactionRespiratory Tract InfectionsCulture Media