To examine the response of CD8+ T cell subsets of BRD7-sufficient and BRD7-deficient mice during virus infection, we infected Brd7fl/fl mice and Brd7ΔT mice with the influenza HKx31 strain and analyzed the CD8+ T cells in the spleen and lungs at the peak of the response (day 10 p.i.). The gene discussed is BRD7; the disease is influenza.