Penicillin ResistancePenicillinsPenicillin GPenicillin-Binding ProteinsStreptococcus pneumoniaeMuramoylpentapeptide CarboxypeptidasePeptidyl TransferasesHexosyltransferasesPenicillin VPneumococcal InfectionsAnti-Bacterial AgentsMicrobial Sensitivity TestsMutationDrug Resistance, MicrobialPoint MutationDrug Resistance, BacterialMutation, MissensePenicillin G ProcainePenicillinaseAminoacyltransferasesBacterial ProteinsPenicillin AmidaseNeisseria gonorrhoeaeLactamsCarrier ProteinsPenicillin G BenzathineMolecular Sequence DataDrug ResistanceSerotypingDrug Resistance, MultipleTransformation, BacterialPolymerase Chain ReactionBase Sequencebeta-LactamsDrug Resistance, Multiple, BacterialErythromycinbeta-LactamasesFrameshift MutationAmpicillinCefotaximeOxacillinDNA Mutational AnalysisMacrolidesStreptococcal InfectionsPeptidoglycan GlycosyltransferaseGenes, BacterialDNA, BacterialGerm-Line MutationAmino Acid SequencePedigreeNasopharynxStreptococcusTetracyclinePneumococcal VaccinesSerine-Type D-Ala-D-Ala CarboxypeptidaseDrug Resistance, NeoplasmTransformation, GeneticPlasmidsStaphylococcus aureusEscherichia coliPolymorphism, Single-Stranded ConformationalHeterozygoteMoraxella (Branhamella) catarrhalisPneumonia, PneumococcalStaphylococcusPhenotypeR FactorsExonsSequence Analysis, DNAGenotypeDrug Resistance, ViralElectrophoresis, Gel, Pulsed-FieldCephalosporinsbeta-Lactam ResistanceSpainCarrier StateDisease ResistanceRespiratory Tract InfectionsNeisseria meningitidisAllelesAmino Acid SubstitutionHaemophilus influenzaeCommunity-Acquired InfectionsVascular ResistanceCulture MediaPeptidoglycanDNA FingerprintingMolecular EpidemiologyMutation RateBacteriaGenes, p53Ampicillin ResistanceBacteremiaHomozygoteGenetic TestingCodon, NonsenseDNA PrimersMutagenesis, Site-DirectedGene DeletionCloning, Molecular