This retrospective cohort study focuses on Clostridium difficile infection (CDI) in infants n, a relatively rare infection. The study will utilize data from hospital and community to identify the prevalence, risk factors, and unique biomarkers associated with CDI in pediatric patients. Key objectives include: (1) analyzing demographic and clinical characteristics of affected patients, (2) evaluating the high-risk factors of CDI, and (3) identifying biomarkers that can aid in early detection and treatment planning. Findings from this study are expected to contribute to the improvement of CDI management in pediatric care.

