Final answer:
FMT's success rate varies by method: colonoscopy has a high success rate around 80% to 90% for treating recurrent C. difficile infection, while oral capsules show a slightly lower success rate ranging from 70% to 90%.
Step-by-step explanation:
The success rate of fecal microbiota transplantation (FMT) varies depending on the method of delivery. FMT can be administered through colonoscopy, enemas, oral capsules, and other methods. Colonoscopic FMT has shown success rates of approximately 80% to 90% in treating recurrent Clostridioides difficile infection, which is considered a high success rate. On the other hand, the use of oral capsules for FMT, while more convenient, has reported slightly lower success rates, which can range from 70% to 90%. It's important to note that these rates may vary depending on the population studied, the rigor of the clinical trial, and the definition of 'success' used in the study.