QuinolonesDrug Resistance, BacterialPlasmidsAnti-Bacterial AgentsEnterobacteriaceae InfectionsEnterobacteriaceaeMolecular TypingConjugation, GeneticMicrobial Sensitivity Testsbeta-LactamasesDrug Resistance, Multiple, BacterialSequence Analysis, DNAEscherichia coliPolymerase Chain ReactionBacterial Proteins