Klebsiella oxytocaKlebsiella pneumoniaeKlebsiella InfectionsKlebsiellabeta-LactamasesEnterobacteriaceaeMicrobial Sensitivity Testsbeta-Lactam ResistanceEnterobacterEnterobacteriaceae InfectionsButylene Glycolsbeta-LactamsCarbapenemsEscherichia coliPlasmidsBacterial ProteinsGram-Negative BacteriaCephalosporinsCitrobacter freundiiPropanediol DehydrataseDNA, BacterialGenes, BacterialMolecular Sequence DataMonobactamsConjugation, GeneticDrug Resistance, Multiple, BacterialCross InfectionCeftazidimeDrug Resistance, BacterialNitrogenaseEnterobacter cloacaeLiver AbscessAztreonamElectrophoresis, Gel, Pulsed-FieldNitrogen FixationEnterobacter aerogenesCephalosporin ResistanceIsoelectric FocusingSequence Analysis, DNALactate DehydrogenasesCefotaximeBacteremiaClavulanic AcidBase SequenceGram-Positive BacteriaCobamidesAmpicillinAmino Acid SequencePolymerase Chain ReactionChromosomes, BacterialCephaloridineLiver Abscess, PyogenicEnterocolitis, PseudomembranousCloning, Molecular