However, with the exception of one animal that made a Mamu-A*01 Gag181–189-specific response that exceeded 13% of the circulating CD8+ T cell population (Figure 3B), these responses were generally lower reflecting the lower take of infection for VSV GNJ scSIV than for VSV GI scSIV (Figure 2B). The gene discussed is CD8A; the disease is infection.