Klebsiella pneumoniaeKlebsiella InfectionsEnterobacteriaceaebeta-LactamasesCarbapenemsEnterobacteriaceae Infectionsbeta-Lactam Resistancebeta-LactamsBacterial ProteinsAnti-Bacterial AgentsMicrobial Sensitivity TestsGram-Negative BacteriaKlebsiella oxytocaStreptococcus pneumoniaeMycoplasma pneumoniaeAcinetobacter baumanniiImipenemDrug Resistance, Multiple, BacterialThienamycinsDrug Resistance, BacterialDNA, BacterialEnterobacterEscherichia coliCephalosporinsPlasmidsEnterobacter cloacaeCross InfectionBacteriological TechniquesCeftazidimeElectrophoresis, Gel, Pulsed-FieldAcinetobacter InfectionsKlebsiellaGenes, BacterialMultilocus Sequence TypingNitrogenaseGram-Negative Bacterial InfectionsPenicillanic AcidCitrobacter freundiiHospitalsConjugation, GeneticPolymerase Chain ReactionLiver AbscessMolecular Sequence DataProteusDisk Diffusion Antimicrobial TestsMolecular TypingNitrogen FixationSequence Analysis, DNAAcinetobacterSerratiaMinocyclineCefotaximeClavulanic AcidBacteriaPseudomonas aeruginosaDrug Resistance, MicrobialCephalosporin ResistanceBacteremiaPneumonia, BacterialGreeceMolecular EpidemiologyPneumonia, MycoplasmaAnti-Infective AgentsEscherichia coli InfectionsDNA FingerprintingProteus mirabilisIntegronsBacterial Typing TechniquesIsoelectric FocusingCulture MediaEscherichiaPneumococcal InfectionsLiver Abscess, PyogenicCitrobacterDisease OutbreaksSerratia marcescensAztreonamQuinolonesBacterial CapsulesMolybdoferredoxinBacterial InfectionsGram-Positive BacteriaGene Transfer, HorizontalCefoxitinPorinsHospitals, UniversityFluoroquinolonesColistinMultiplex Polymerase Chain ReactionBase SequencePiperacillinChlamydophila InfectionsCiprofloxacinEnterobacter aerogenesDNA Transposable ElementsAcetyleneColony Count, MicrobialPolysaccharides, BacterialPenicillinsAmino Acid Sequence