EnterobacteriaceaeEnterobacteriaceae Infectionsbeta-LactamasesMicrobial Sensitivity TestsAnti-Bacterial Agentsbeta-Lactam ResistanceEnterobacterSerratiaProteusBacteriological TechniquesCarbapenemsKlebsiellaEscherichiaKlebsiella pneumoniaebeta-LactamsCephalosporinsGram-Negative BacteriaCitrobacterBacteriaEscherichia coliBacterial ProteinsDNA, BacterialDrug Resistance, BacterialDrug Resistance, Multiple, BacterialDrug Resistance, MicrobialSalmonellaEnterobacter cloacaeKlebsiella InfectionsSerratia marcescensGram-Negative Bacterial InfectionsVibrionaceaeEvaluation Studies as TopicAztreonamKlebsiella oxytocaCeftazidimeCulture MediaCefotaximeProteus mirabilisProvidenciaShigellaMolecular Sequence DataCephalosporin ResistanceFecesKluyveraPseudomonas aeruginosaCitrobacter freundiiPseudomonadaceaeCross InfectionPenicillanic AcidThienamycinsPlasmidsConjugation, GeneticAzabicyclo CompoundsQuinolonesGram-Positive BacteriaSequence Analysis, DNAImipenemErwiniaSpecies SpecificityBacteria, AerobicBacterial InfectionsAnti-Infective AgentsClavulanic AcidAcinetobacterAminoglycosidesBacteremiaAmikacinBacterial Typing TechniquesAntisepsisFluoroquinolonesPiperacillinGenes, BacterialPolymerase Chain ReactionKanamycinHospitalsCiprofloxacinGene Transfer, HorizontalMinocyclineYersiniaPhylogenyRNA, Ribosomal, 16SGentamicinsDisk Diffusion Antimicrobial TestsChromogenic CompoundsIntegronsFermentationEsculinAgarPseudomonasCefoxitinBacteria, AnaerobicAeromonasAmino Acid SequenceMolecular TypingElectrophoresis, Gel, Pulsed-FieldProteus vulgarisEscherichia coli InfectionsCefoperazoneSalmonella typhimuriumMultilocus Sequence Typing