The Friedrich Loeffler Institute – Institute of Molecular Pathogenesis (FLI-IMP) is a German federal research institute focused on the molecular mechanisms of infectious diseases in animals. Its original German name is Friedrich-Loeffler-Institut, Institut für Molekulare Pathogenese. The institute conducts research on pathogen-host interactions, molecular diagnostics, and disease mechanisms, providing scientific insights to support animal health, disease prevention, and biosecurity.