Fecal Microbiota Transplantation for Primary Clostridium Difficile Diarrhea

Inclusion Criteria: * life expectancy \> 3 months, 3 or more unformed stools in 24 hours prior to randomization, positive stool test within 72 hours of randomization Exclusion Criteria: * pregnancy, previous stool test positive within 12 months, toxic megacolon or ileus, already received \>4 doses of treatment for current episode, inflammatory bowel disease, gastrointestinal surgery within 90 days of randomization (except appendectomy or cholecystectomy), documented aspiration of gastric contents within 90 days of randomization, requirement for treatment with oral probiotics, opiates, loperamide or diphenoxylate during the study duration, anticipated use of antibiotics for any reason during the study duration, known non-CDAD concurrent gastrointestinal infection, concurrent enrollment in another clinical trial for any reason, intolerance or hypersensitivity to Vancomycin, anaphylactic reaction to any food, current induction chemotherapy, HIV infection with Cluster of Differentiation 4 (CD4) count \<200, or any medical or non-medical condition considered by the investigator to preclude participation.