Kanamycin KinaseDrug Resistance, BacterialAminoglycosidesAcetyltransferasesAnti-Bacterial AgentsDrug Resistance, MicrobialMicrobial Sensitivity TestsDrug Resistance, Multiple, BacterialDrug ResistanceDrug Resistance, MultipleEscherichia coliBacterial ProteinsTetracyclineDNA, BacterialR FactorsConjugation, GeneticTetracycline ResistancePlasmidsAntibiotic ProphylaxisStreptomycinIntegrons