Potential participants who meet key eligibility criteria [adults who have undergone renal transplantation and have a history of infection with the Target Multidrug Resistant Organisms (MDRO)] will be approached for consideration of study participation. For this study, Target MDRO colonization is defined as a positive bacterial culture of either carbapenem-resistant Enterobacteriaceae (CRE), vancomycin-resistant Enterococcus (VRE), Extended Spectrum Beta-Lactamases (ESBL), and/or multidrug resistant (MDR) Pseudomonas from perirectal swab sampling.