Fecal microbiome transplantation is also known as a “stool transplant”. Fecal transplantation involves transplanting donor stool from a healthy individual to a sick patient. Fecal transplantation is used to treat patients with recurrent Clostridium difficile infection. C. difficile infection is a type of gut infection that causes diarrhea, sometimes very severe. C. difficile occurs when healthy normal human gut bacteria are reduced in number such as during antibiotic therapy, allowing selective colonization of the gut with C. difficile. During fecal transplantation, healthy donor stool is delivered during a colonoscopy examination to a sick patients’ colon and has been shown to be highly effective.