CD8A and infection: When the cells were stained with theTB10.44−11/Kb tetramer corresponding to theIMYNYPAM epitope (hereafter referred to as “WT”), 26%of lung CD8 T cells were specific for TB10.44−11; in contrast, fewerthan 1% of lung CD8 T cells recognized TB10.44−11 after 667 infection(Fig 2A and 2B).