Enterobacter cloacaeEnterobacterEnterobacter aerogenesEnterobacteriaceae InfectionsEnterobacteriaceaeCloacabeta-LactamasesKlebsiellaMicrobial Sensitivity TestsKlebsiella pneumoniaeCephalosporinsAnti-Bacterial AgentsCronobacter sakazakiiCephalosporinasebeta-LactamsGram-Negative BacteriaCitrobacter freundiiCephalosporin ResistanceDrug Resistance, MicrobialBacteriaCeftazidimeDNA, BacterialSerratiaPythiumSerratia marcescensEscherichiaPlasmidsEscherichia coliBacterial ProteinsDrug Resistance, Bacterialbeta-Lactam ResistanceGenes, BacterialCitrobacterImipenemCefotaximeCarbapenemsProteusCefoperazoneCross InfectionNitroreductasesMolecular Sequence DataGram-Positive BacteriaSequence Analysis, DNAQuinolonesCeftizoximePenicillanic AcidAztreonamSerratia InfectionsIsoelectric FocusingMonobactamsLactamsConjugation, GeneticHistidine Ammonia-LyaseCefoxitinCucumis sativusElectrophoresis, Gel, Pulsed-FieldThienamycinsPenicillinaseCulture MediaTrinitrotolueneDrug Resistance, Multiple, BacterialEnzyme InductionCephalexinGram-Negative Bacterial InfectionsPorinsKlebsiella oxytocaParabensBacterial Typing TechniquesBacteriological TechniquesCephaloridineSulfacetamideCloning, MolecularBase SequenceAlgeriaBacterial InfectionsPenicillinsBacterial Outer Membrane ProteinsAmpicillinIntegronsCefmenoximeSugar AlcoholsAntibiosisPiperacillinCiprofloxacinPolymerase Chain ReactionCefotiamPseudomonas aeruginosaAnti-Infective Agents