The purpose of the study is to determine the safety and efficacy of Fecal Microbiota Transplant (FMT) for the treatment of the recurrence of Clostridium difficile infection (CDI) as compared to standard antibiotic therapy. Patients who have tested positive for CDI within 90 days of an admission for relapse of CDI will be approached to participate in this open-label, randomized controlled trial. Patients will either be randomized to the intervention group (receive FMT via retention enema) or the control group (receive antimicrobials targeting CDI).