A significantly higher percentage of SARS-CoV-2-N-specific CD4+ IFNγ+ T lymphocytes (fold change [1.83 ± 0.086]) were identified at 10 dpi in lean mice when compared to Lepr-deficient, T2DM mice (P = 0.01; Figure 8F). The gene discussed is IFNG; the disease is type 2 diabetes mellitus.