The IRCI meeting is a distinctive forum for presenting recent breakthroughs and fostering dialogue on immune responses in cancer and infections.This three days event will convene eminent international scientists and clinicians to share their latest immunological insights from both fundamental and clinical research. By maintaining a limited participant count and keeping registration fees low, our aim is to cultivate robust discussions among field leaders and attendees, thereby advancing and delineating the landscape of immunological research and therapeutic approaches for the future. The organizers and our esteemed international scientific committee, led by Professors Yasmine Belkaid and Alexander Y. Rudensky, extend a warm welcome to you in Lyon, France, in June 2025! https://www.irci2025.insight-outside.fr/en/home/4