Dr. Nicholson has a broad background in clinical and epidemiologic pediatric research including advanced training in biostatistics and protocol development as well as experience conducting prospective studies requiring patient enrollment. These skills were obtained through her fellowship in Pediatric Gastroenterology, Hepatology, and Nutrition and the acquisition of a Master's of Public Health in Epidemiology at Vanderbilt University. She has previously conducted both retrospective and prospective studies evaluating pediatric Clostridioides difficile infections which were completed through a highly competitive T32 training grant and the Thrasher Early Career Award. As an Assistant Professor of Pediatrics in Pediatric Gastroenterology, Hepatology, and Nutrition, she has established the Pediatric C. difficile Clinic which cares for children with refractory and recurrent C. difficile disease. She has also established the Pediatric Fecal Microbiota Transplantation (FMT) program at Monroe Carell Jr. Children's Hospital at Vanderbilt and established herself as an expert in the treatment of C. difficile infections at Vanderbilt and nationally as the co-PI on a multi-center consortium evaluating FMT in pediatric patients with recurrent C. difficile. She received the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition (NASGPHAN) Young Faculty Clinical Investigator award for this work and has been made the NASGPHAN FMT Special Interest Group co-chair. She received a KL2 award in August of 2017 to study C. difficile infections in the pediatric population.

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