Tetramer staining results for Mamu-A*01-positive animals, 80035 and 96135, after the first MVA boost and throughout infection. Percentages shown are for tetramer-specific CD8+ T cells. In addition to the tetramers against the Mamu-A*01-restricted epitopes Gag181-189CM9 and Tat28-35SL8, tetramers against two more Mamu-A*01-restricted epitopes, Env235-243CL9 and Env622-630TL9 (2), were tested postchallenge.