Immunologically, leprosy in armadillos also resembles human leprosy as shown by the IFN-γ responses to a variety of recombinant M. leprae proteins in peripheral blood mononuclear cells (PBMCs) from M. leprae infected armadillos (Geluk et al., 2011; Pena et al., 2011). The gene discussed is IFNG; the disease is leprosy.