PiperacillinPenicillin ResistancePenicillinsPenicillin GStreptococcus pneumoniaeAnti-Bacterial AgentsPenicillanic AcidMicrobial Sensitivity TestsPenicillin VPneumococcal InfectionsPenicillin-Binding ProteinsMuramoylpentapeptide CarboxypeptidaseDrug Resistance, MicrobialHexosyltransferasesPeptidyl TransferasesDrug Resistance, BacterialPenicillin G ProcainePenicillinaseLactamsBacteremiabeta-LactamasesPenicillin Amidasebeta-LactamsNeisseria gonorrhoeaeTicarcillinPenicillin G BenzathineAmpicillinDrug Resistance, Multiple, BacterialCarbenicillinDrug Resistance, MultipleAminoacyltransferasesSerotypingBacterial ProteinsDrug ResistanceCefotaximeErythromycinStreptococcal InfectionsBacteriaStreptococcusTransformation, BacterialCephalosporinsTrypanosoma brucei bruceiMacrolidesCarrier ProteinsOxacillinPseudomonas aeruginosaTetracyclineNasopharynxPneumococcal VaccinesStaphylococcusPneumonia, PneumococcalAzlocillinStaphylococcus aureusCross InfectionFungemiaGentamicinsDNA, BacterialTobramycinEnterobacteriaceaeDrug Resistance, NeoplasmMezlocillinGram-Negative BacteriaMoraxella (Branhamella) catarrhalisTransformation, GeneticCefoxitinSulbactamR FactorsMolecular Sequence DataBacterial InfectionsElectrophoresis, Gel, Pulsed-FieldRespiratory Tract InfectionsCommunity-Acquired InfectionsGram-Negative Bacterial InfectionsCatheter-Related InfectionsMutationCeftazidimebeta-Lactam ResistanceGenes, BacterialPlasmidsCarrier StateCulture MediaAnti-Infective AgentsClavulanic AcidDrug Therapy, CombinationImipenemDisease ResistanceNeisseria meningitidisHaemophilus influenzaeSpainFloxacillinCatheterization, Central VenousAztreonamCephalothinEscherichia coliVascular ResistanceCefoperazonePseudomonas InfectionsClavulanic AcidsCiprofloxacinDNA Fingerprinting