CefotaximeCephalosporinsDrug Resistance, MicrobialMicrobial Sensitivity TestsAnti-Bacterial AgentsDrug Resistance, BacterialDrug ResistanceCephalosporin ResistanceMoxalactambeta-LactamasesCephamycinsCefoperazonePenicillin ResistanceDrug Resistance, NeoplasmCeftazidimeDrug Resistance, Multiple, BacterialDrug Resistance, Multiplebeta-Lactamsbeta-Lactam ResistanceEnterobacteriaceaeCeftriaxoneDisease ResistanceCeftizoximeStreptococcus pneumoniaePenicillinsVascular ResistanceDrug Resistance, ViralEnterobacteriaceae InfectionsAmpicillin ResistanceEscherichia coliCefoxitinBacteriaCephalosporinaseLactamsAztreonamKlebsiella pneumoniaeCefmenoximeImipenemBacterial ProteinsMutationPenicillin-Binding ProteinsCiprofloxacinAmpicillinMolecular Sequence DataPiperacillinThienamycinsGram-Negative BacteriaConjugation, GeneticAnti-Infective AgentsCefuroximeDNA, BacterialTetracycline ResistanceEnterobacterPlasmidsKlebsiella InfectionsCefotiamBacterial InfectionsClavulanic AcidPlant DiseasesMuramoylpentapeptide CarboxypeptidasePneumococcal InfectionsPeptidyl TransferasesDrug Resistance, FungalHexosyltransferasesGentamicinsAirway ResistanceErythromycinKlebsiellaFluoroquinolonesMeningitisPseudomonas aeruginosaTobramycinTetracyclineAzlocillinGenes, BacterialEscherichia coli InfectionsPenicillanic AcidClavulanic AcidsAmikacinDrug SynergismStaphylococcus aureusElectrophoresis, Gel, Pulsed-FieldNeisseria gonorrhoeaeSerum Bactericidal TestPhenotypeSequence Analysis, DNAAminoglycosidesResistance TrainingVancomycinEmpiricismPenicillin GIsoelectric FocusingPolymerase Chain ReactionBase SequenceAmino Acid SequenceR FactorsMeningitis, PneumococcalGram-Positive BacteriaMacrolidesKanamycin