QuinolonesDrug Resistance, BacterialEnterobacteriaceae InfectionsPlasmidsAnti-Bacterial AgentsEnterobacteriaceaeMolecular TypingConjugation, GeneticMicrobial Sensitivity Testsbeta-LactamasesDrug Resistance, Multiple, BacterialSequence Analysis, DNAEscherichia coliPolymerase Chain ReactionBacterial Proteins