Enterobacter cloacaeEnterobacterEnterobacteriaceae InfectionsEnterobacteriaceaeEnterobacter aerogenesCloacabeta-LactamasesMicrobial Sensitivity TestsAnti-Bacterial AgentsCephalosporinsCronobacter sakazakiibeta-LactamsCephalosporinaseGram-Negative BacteriaCitrobacter freundiiDrug Resistance, MicrobialKlebsiellaCephalosporin ResistanceBacteriaDNA, BacterialCeftazidimePythiumKlebsiella pneumoniaeSequence Analysis, DNAPlasmidsSerratiaEscherichia coliGenes, BacterialDrug Resistance, BacterialCitrobacterSerratia marcescensCefotaximeBacterial Proteinsbeta-Lactam ResistanceEscherichiaImipenemCarbapenemsMolecular Sequence DataNitroreductasesCross InfectionGram-Positive BacteriaBacterial Typing TechniquesQuinolonesCefoperazoneCeftizoximeElectrophoresis, Gel, Pulsed-FieldPenicillanic AcidAztreonamSerratia InfectionsLactamsConjugation, GeneticMonobactamsProteusRNA, Ribosomal, 16SCefoxitinPolymerase Chain ReactionThienamycinsGram-Negative Bacterial InfectionsCucumis sativusCulture MediaIsoelectric FocusingSpecies SpecificityTrinitrotolueneKlebsiella oxytocaCloning, MolecularAntibiosisParabensBacterial Outer Membrane ProteinsAlgeriaAmino Acid SequenceColony Count, MicrobialBacteriological TechniquesSulfacetamidePenicillinsAnti-Infective AgentsDrug Resistance, Multiple, BacterialBacterial InfectionsCiprofloxacinPenicillinaseBase SequenceAmpicillinMutationIntegronsCephalexinPseudomonas aeruginosaCefmenoximePiperacillinPorinsCefotiamCephaloridineDisease OutbreaksEnzyme InductionNucleic Acid Hybridization