EnterobacteriaceaeEnterobacteriaceae Infectionsbeta-LactamasesMicrobial Sensitivity TestsAnti-Bacterial AgentsDrug Resistance, MicrobialDrug Resistance, Bacterialbeta-Lactam ResistanceDrug ResistanceEnterobacterCarbapenemsDrug Resistance, Multiple, BacterialProteusSerratiaBacteriological TechniquesKlebsiellaEscherichiaKlebsiella pneumoniaebeta-LactamsCephalosporinsGram-Negative BacteriaDrug Resistance, NeoplasmEscherichia coliBacteriaBacterial ProteinsDrug Resistance, MultipleCitrobacterDNA, BacterialDisease ResistanceCephalosporin ResistanceSalmonellaVascular ResistanceKlebsiella InfectionsConjugation, GeneticEnterobacter cloacaeGram-Negative Bacterial InfectionsPlasmidsDrug Resistance, ViralSerratia marcescensPseudomonas aeruginosaCulture MediaCeftazidimeCefotaximeMolecular Sequence DataShigellaProteus mirabilisVibrionaceaeEvaluation Studies as TopicAztreonamProvidenciaCross InfectionFecesKlebsiella oxytocaAnti-Infective AgentsQuinolonesSequence Analysis, DNAGenes, BacterialThienamycinsKluyveraAminoglycosidesR FactorsCitrobacter freundiiPenicillanic AcidFluoroquinolonesPenicillin ResistanceGram-Positive BacteriaPseudomonadaceaeKanamycinPolymerase Chain ReactionCiprofloxacinImipenemMutationAzabicyclo CompoundsTetracycline ResistanceBacterial InfectionsIntegronsGentamicinsAmikacinSpecies SpecificityAcinetobacterBacteremiaGene Transfer, HorizontalClavulanic AcidErwiniaDisk Diffusion Antimicrobial TestsHospitalsPlant DiseasesBacteria, AerobicElectrophoresis, Gel, Pulsed-FieldPhenotypePiperacillinMinocyclineAmpicillin ResistanceEscherichia coli InfectionsAntisepsisBacterial Typing TechniquesBase SequenceMolecular TypingChloramphenicol ResistancePenicillins