Citrobacter freundiiCitrobacterCitrobacter rodentiumEnterobacteriaceae InfectionsTyrosine Phenol-LyaseEscherichiaCitrobacter koseriEnterobacteriaceaebeta-LactamasesCephalosporinaseMicrobial Sensitivity TestsEnterobacter cloacaeEnterobacterAnti-Bacterial AgentsCefotaximeGram-Negative BacteriaSerratiaDicloxacillinPyronineCephalosporinsEscherichia coliProteus vulgarisUranium CompoundsBacterial ProteinsDNA, BacterialBacteriaMolecular Sequence DataGenes, BacterialCeftazidimeDrug Resistance, MicrobialKlebsiella oxytocaSerratia marcescensPlasmidsbeta-LactamsCefotiamMonobactamsCefmenoximebeta-Lactam ResistanceCephalosporin ResistanceCephaloridineKlebsiellaPenicillinaseConjugation, GeneticGram-Positive BacteriaThienamycinsSequence Analysis, DNABase SequenceCloxacillinCarbapenemsKlebsiella pneumoniaePolymerase Chain ReactionCefiximeDrug Resistance, BacterialProteus mirabilisAmpicillinSalmonellaElectrophoresis, Gel, Pulsed-FieldProteusQuinolonesPenicillanic AcidImipenemCeftizoximeSpecies SpecificityChromosomes, BacterialEscherichia coli ProteinsWater MicrobiologyAmino Acid SequenceIsoelectric FocusingFeces