The Winter School in Clinical Epidemiology is a 5-day course taking place on-site in Hall in Tirol from 9–13 February 2026. This course offers a comprehensive introduction to key epidemiological principles and their application in clinical and public health research. Through interactive lectures and practical sessions, participants will explore topics including study design, disease risk and prognosis, treatment efficacy and safety, diagnostic studies, and decision analysis in medicine and public health. Designed for professionals from healthcare, HTA agencies, industry, academia, and consulting, the course is taught in English and requires no prerequisites.