 The study is designed to enroll forty children aged 1-18 with recurrent Clostridium difficile Infection CDI. Recurrent CDI is defined as an infection that persists after three rounds of appropriate antibiotics. Enrollees will be randomly assigned to receive Fecal Microbial Transplant using stool from either a screened relative as per current protocols versus using frozen stool that has been collected from healthy volunteers. 