Penicillin ResistancePenicillinsPenicillin GPenicillin-Binding ProteinsStreptococcus pneumoniaeMuramoylpentapeptide CarboxypeptidasePeptidyl TransferasesHexosyltransferasesPenicillin VPneumococcal InfectionsAnti-Bacterial AgentsMutationMicrobial Sensitivity TestsDrug Resistance, MicrobialPoint MutationDrug Resistance, BacterialMutation, MissensePenicillin G ProcainePenicillinaseAminoacyltransferasesBacterial ProteinsPenicillin AmidaseNeisseria gonorrhoeaeLactamsMolecular Sequence DataCarrier ProteinsPenicillin G BenzathineBase SequenceDrug ResistanceSerotypingDrug Resistance, MultiplePolymerase Chain ReactionTransformation, Bacterialbeta-LactamsDrug Resistance, Multiple, BacterialErythromycinbeta-LactamasesFrameshift MutationAmino Acid SequenceAmpicillinCefotaximeOxacillinDNA Mutational AnalysisMacrolidesStreptococcal InfectionsPlasmidsGenes, BacterialPeptidoglycan GlycosyltransferaseDNA, BacterialGerm-Line MutationPedigreeNasopharynxStreptococcusTetracyclinePneumococcal VaccinesSerine-Type D-Ala-D-Ala CarboxypeptidaseDrug Resistance, NeoplasmTransformation, GeneticPhenotypeStaphylococcus aureusEscherichia coliPolymorphism, Single-Stranded ConformationalGenotypeHeterozygoteMoraxella (Branhamella) catarrhalisPneumonia, PneumococcalStaphylococcusR FactorsExonsSequence Analysis, DNAHepatitis B virusDrug Resistance, ViralElectrophoresis, Gel, Pulsed-FieldCephalosporinsbeta-Lactam ResistanceSpainCarrier StateDisease ResistanceTrans-ActivatorsAllelesRespiratory Tract InfectionsNeisseria meningitidisAmino Acid SubstitutionX ChromosomeHaemophilus influenzaeCommunity-Acquired InfectionsVascular ResistanceCulture MediaPeptidoglycanDNA FingerprintingMolecular EpidemiologyMutation RateBacteriaGenes, p53Cell LineAmpicillin ResistanceCloning, MolecularBacteremiaHomozygoteGenetic Testing