Antigen-specific CD8+ T cell response was evaluated in the early (7 days) and late (2 months) phase of infection by measuring IFN-γ and TNF-α production after stimulation with non-inflationary peptide M45, inflationary peptide M38, as well as OVA-derived peptide SIINFEKL (Figure 3A; Figure S2 in Supplementary Material). The gene discussed is IFNG; the disease is infection.