PiperacillinPenicillin ResistancePenicillinsPenicillin GStreptococcus pneumoniaeAnti-Bacterial AgentsMicrobial Sensitivity TestsPenicillanic AcidPenicillin VPneumococcal InfectionsPenicillin-Binding Proteinsbeta-LactamasesMuramoylpentapeptide CarboxypeptidaseDrug Resistance, MicrobialDrug Resistance, BacterialHexosyltransferasesPeptidyl TransferasesPenicillin G Procainebeta-LactamsPenicillinaseLactamsPenicillin AmidaseNeisseria gonorrhoeaeDrug Resistance, Multiple, BacterialTicarcillinPenicillin G BenzathineAmpicillinEnterobacteriaceaeCefotaximeCarbenicillinDrug Resistance, Multiplebeta-Lactam ResistanceBacterial ProteinsSerotypingAminoacyltransferasesCephalosporinsDrug ResistanceErythromycinEnterobacteriaceae InfectionsTransformation, BacterialClavulanic AcidStreptococcal InfectionsKlebsiella pneumoniaeMacrolidesStreptococcusBacteriaCeftazidimeDNA, BacterialCarrier ProteinsPseudomonas aeruginosaKlebsiella InfectionsTetracyclineNasopharynxPneumococcal VaccinesOxacillinKlebsiellaElectrophoresis, Gel, Pulsed-FieldAzlocillinBacteremiaPneumonia, PneumococcalGram-Negative BacteriaCefoxitinTobramycinGentamicinsEscherichia coliDrug Resistance, NeoplasmMezlocillinPlasmidsMoraxella (Branhamella) catarrhalisStaphylococcusTransformation, GeneticSulbactamR FactorsGenes, BacterialStaphylococcus aureusCarrier StateCommunity-Acquired InfectionsImipenemRespiratory Tract InfectionsAztreonamMutationBacterial InfectionsMolecular Sequence DataMolecular EpidemiologyCulture MediaDNA FingerprintingThienamycinsDrug Therapy, CombinationClavulanic AcidsSpainDisease ResistanceCiprofloxacinEscherichia coli InfectionsPolymerase Chain ReactionAnti-Infective AgentsFloxacillinHaemophilus influenzaeGram-Negative Bacterial InfectionsNeisseria meningitidisSerratia