The micro-organism Clostridium difficile, or C. diff, can cause serious infection and is often resistant to antibiotic therapy. A less traditional approach to treatment — the stool transplant — has emerged as a very successful therapy for patients suffering from C. diff. What does the procedure involve, and which patients might be candidates? Host Dr. Mark DeLegge explores this unconventional therapy with Dr. Timothy Rubin, gastroenterologist at Saint Mary's Duluth Clinic Health System in Minnesota.