EBV antigen-specificity of patient no. 13 CTL line after depletion of CD56⁺ and CD16⁺ cells. Targets were the autologous LCLs, HH-LCL that was HLA-matched at HLA-A2, -A3, -B35, and -DR1, and HH-derived dermal fibroblasts that had been infected with vaccinia recombinants expressing each of the EBV latency-associated proteins. Killing at an effector:target ratio of 20:1 is shown.