To support pilot studies in researching: 1) Etiology/Pathogenesis (could include a broad range of studies of immunity, inflammation, or vascular biology. Relevance to human vasculitis will be taken into account by the reviewers. 2) Epidemiology, including genetics 3) Diagnosis, including identification of disease subtypes. 4.) Treatment/Management, including therapeutics to treat vasculitis or prevent complications, biomarkers, and psychosocial outcomes. The goals of the Research Program are to improve the quality of life for patients with vasculitis and ultimately find the cause/s and cure for vasculitis.