[Contribution of GIGA I3 (GIGA-Infection, Immunity and Inflammation) to the understanding of the complex pathogen-host-environment interplay].

COVID-19 has highlighted the necessary synergy between clinicians and researchers. Such synergy constitutes the DNA of GIGA I3 (GIGA-Infection, Immunity and Inflammation) and makes its wealth. It ensures the translational nature of the research projects on pathologies involving the immune system in an infectious or non-infectious context.