EnterobacterEnterobacter cloacaeEnterobacter aerogenesEnterobacteriaceae InfectionsEnterobacteriaceaeCronobacter sakazakiiAnti-Bacterial AgentsMicrobial Sensitivity Testsbeta-LactamasesKlebsiellaCephalosporinsBacteriaDrug Resistance, MicrobialAntibiotic Prophylaxisbeta-LactamsGram-Negative BacteriaDrug Resistance, BacterialSerratiaDNA, BacterialAminoglycosidesBacterial InfectionsCephalosporinaseEscherichiaEscherichia coliGram-Positive BacteriaCitrobacterPenicillinsBacterial ProteinsCeftazidimeGentamicinsDrug Resistance, Multiple, Bacterialbeta-Lactam ResistanceCephalosporin ResistanceAmpicillinCross InfectionProteusStreptomycesKlebsiella pneumoniaeCefotaximeAntibiotics, AntineoplasticCitrobacter freundiiLactamsGram-Negative Bacterial InfectionsSerratia marcescensMolecular Sequence DataGenes, BacterialCulture MediaPseudomonas aeruginosaAnti-Infective AgentsImipenemPlasmidsFermentationSequence Analysis, DNACiprofloxacinBacteremiaCarbapenemsBacteriological TechniquesCephalothinThienamycinsCefoxitinStaphylococcus aureusCephalexinCefoperazoneColony Count, MicrobialPenicillanic AcidCephaloridineCefazolinDrug UtilizationAztreonamAmikacinBacterial Typing TechniquesPiperacillinKanamycinCefamandoleInfant FormulaErwiniaConjugation, GeneticQuinolonesChloramphenicolTobramycinFood MicrobiologyCeftriaxonePythiumElectrophoresis, Gel, Pulsed-FieldPenicillin ResistanceRNA, Ribosomal, 16SCronobacterErythromycinKluyveraTetracyclineWound InfectionKlebsiella InfectionsMacrolidesPolymerase Chain ReactionPenicillin GGram-Negative Aerobic BacteriaChemistryChemical PhenomenaPolymyxinsColistin