Penicillin ResistancePenicillinsAnti-Bacterial AgentsDrug Resistance, BacterialPenicillin GMicrobial Sensitivity TestsDrug Resistance, MicrobialMurrayaStreptococcus pneumoniaeDrug Resistance, Multiple, BacterialPenicillin VPneumococcal InfectionsTetracyclinePenicillin-Binding ProteinsMuramoylpentapeptide CarboxypeptidaseStaphylococcus aureusBacteriaPeptidyl TransferasesHexosyltransferasesBacterial ProteinsPenicillin G ProcainePenicillinaseCarrier StateStaphylococcal InfectionsEscherichia coliPenicillin AmidaseNeisseria gonorrhoeaeDNA, BacterialLactamsDrug ResistancePenicillin G BenzathineDrug Resistance, MultipleErythromycinSerotypingCross InfectionAminoacyltransferasesMacrolidesAmpicillinbeta-Lactamasesbeta-LactamsStreptococcal InfectionsTransformation, BacterialCefotaximeOxacillinStreptococcusNasopharynxCarrier ProteinsDrug Resistance, NeoplasmPneumococcal VaccinesStaphylococcusAntibiotic ProphylaxisR FactorsMutationMolecular Sequence DataMoraxella (Branhamella) catarrhalisPneumonia, PneumococcalTransformation, GeneticGenes, BacterialCephalosporinsPlasmidsElectrophoresis, Gel, Pulsed-FieldCommunity-Acquired InfectionsCulture MediaDisease ResistanceBacteremiaGentamicinsAminoglycosidesRespiratory Tract InfectionsNeisseria meningitidisHaemophilus influenzaeSpainDrug Resistance, ViralStreptomycinVascular ResistancePolymerase Chain ReactionTetracycline ResistanceAnti-Infective AgentsDNA FingerprintingMolecular EpidemiologyBase SequenceStreptomycesAmino Acid SequenceBacterial Infectionsbeta-Lactam ResistanceBacterial Typing TechniquesClindamycinCeftriaxoneChloramphenicolAntibiotics, AntineoplasticKanamycinCloxacillinVancomycinAmpicillin ResistanceCiprofloxacinPseudomonas aeruginosaCephaloridineEnterobacteriaceaeFluoroquinolonesGonorrheaDrug Utilization