We tested an anti-proliferative activity caused by Ad/IFN-λ1 or Ad/IFN-λ2 infection and found that YES-2 and T.Tn cells were sensitive to Ad/IFN-λ-mediated growth suppression, whereas TE-1 and YES-6 cells were insensitive (Figure 2C). The gene discussed is IFNL1; the disease is infection.