The Centre International de Recherche en Infectiologie (CIRI) is a joint research unit of the Lyon 1 University, Inserm, CNRS and the ENS de Lyon in partnership with VetAgro Sup, the Institut Pasteur and the Hospices Civils de Lyon. The CIRI gathers the scientific and medical research communities with complementary disciplinary backgrounds grouped in 3 specialties working together with the objective to understand host-microbe interactions to better fight infectious diseases.