Klaus Felix Warnatz

Professor Klaus Felix Warnatz is a distinguished Senior Physician in the Department of Immunology at the University of Zurich's Faculty of Medicine. With a medical doctorate and professorship, he specializes in immunology and rheumatology, holding significant leadership roles in major immunological societies across Europe.

• Specialist in internal medicine and rheumatology
• Active member of European Society for Immunodeficiencies
• Member of German Society for Rheumatology
• Member of German Society for Internal Medicine
• Member of German Society for Immunology

Professor Warnatz's research focuses primarily on primary immunodeficiencies, autoimmune disorders, and clinical immunology. His work spans diagnostic criteria development, therapeutic interventions for immunodeficiency disorders, and understanding the complex interplay between immune dysfunction and autoimmune manifestations. He has made substantial contributions to establishing clinical guidelines that shape international standards of care.

His publication record demonstrates consistent scholarly output with over 290 publications spanning three decades, with significant acceleration in recent years (33 publications in 2022 alone). The research trends show a strong emphasis on consensus guidelines, diagnostic criteria for immunodeficiency disorders, and therapeutic approaches for complex immune conditions.

• Medical Advisory Committee for IPOPI (International Patient Organization for Primary Immunodeficiency)
• Medical Advisory Commission for DSAI (German Self-Help Group for Congenital Immunodeficiencies)

Professor Warnatz actively contributes to advancing the field through his leadership in developing international consensus documents, including the ICON guidelines for Common Variable Immunodeficiency Disorders and the ESID Registry Working Definitions for Inborn Errors of Immunity. His work bridges clinical practice with research, focusing on improving diagnostic accuracy and treatment outcomes for patients with complex immunological conditions.