The 19th IUIS International Congress of Immunology will be held in Vienna from August 17–22, 2025. Hosted by IUIS and ÖGAI, it’s the world’s largest immunology event, uniting global researchers and clinicians.

The theme, “Waltzing into the Future of Immunology,” ties science with Vienna’s rich cultural heritage. Over 3,000 delegates are expected, with 150+ sessions covering all fields of immunology.
The congress offers a unique mix of cutting-edge science and the historic charm of Vienna. Don’t miss this premier event in immunology—register now at iuis2025.org.