Penicillin ResistancePenicillinsPenicillin GStreptococcus pneumoniaePenicillin VPneumococcal InfectionsPenicillin-Binding ProteinsAnti-Bacterial AgentsMicrobial Sensitivity TestsMuramoylpentapeptide CarboxypeptidaseDrug Resistance, MicrobialHexosyltransferasesPeptidyl TransferasesDrug Resistance, BacterialPoint MutationPenicillin G ProcaineMutationPenicillinaseMutation, MissensePenicillin AmidaseNeisseria gonorrhoeaePenicillin G BenzathineLactamsDrug ResistanceBacterial ProteinsAminoacyltransferasesSerotypingDrug Resistance, MultipleDrug Resistance, Multiple, BacterialErythromycinMolecular Sequence DataTransformation, Bacterialbeta-LactamasesCarrier ProteinsDrug DiscoveryMacrolidesStreptococcal InfectionsAmpicillinTetracyclineFrameshift MutationNasopharynxCefotaximePneumococcal VaccinesBase SequenceOxacillinStreptococcusDrug Resistance, NeoplasmPolymerase Chain ReactionTransformation, Geneticbeta-LactamsDNA, BacterialGenes, BacterialMoraxella (Branhamella) catarrhalisAmino Acid SequencePneumonia, PneumococcalPlasmidsR FactorsGerm-Line MutationStaphylococcusDrug Resistance, ViralStaphylococcus aureusCarrier StateDisease ResistanceSequence Analysis, DNAElectrophoresis, Gel, Pulsed-FieldRespiratory Tract InfectionsEscherichia coliPedigreeSpainNeisseria meningitidisVascular ResistanceCommunity-Acquired InfectionsGenotypeCulture MediaHaemophilus influenzaeBacteriaPhenotypeBacteremiaMolecular EpidemiologyMutation RateDNA FingerprintingAllelesCephalosporinsExonsHeterozygoteTetracycline ResistanceAmino Acid SubstitutionDNA Mutational AnalysisMutagenesis, Site-DirectedBacterial Typing TechniquesMutagenesisChromosome MappingModels, MolecularStreptomycinDNA PrimersCloning, MolecularCell LineBinding SitesPolymorphism, Single-Stranded Conformationalbeta-Lactam Resistance