Prof. Alexander Scheffold, Head of Technical Immunology at Technische Universität Berlin, has been elected to the German National Academy of Sciences Leopoldina. This distinction recognizes his outstanding contributions to human immunology, particularly his pioneering research on antigen-specific T cells. His work has advanced the understanding of immune tolerance, autoimmunity, allergies, and infections, while laying the foundation for innovative diagnostic and therapeutic approaches. We warmly congratulate him on this prestigious honor.