 We will take 60-70 ml 12 teaspoonfuls of blood from the subject. We will first make a B cell line called a lymphoblastoid cell line or LCL by infecting the subjects blood with a laboratory strain of EBV called B95. We will then use use this EBV infected cell line which have been treated with radiation so that they cannot grow as stimulator cells and mix it with more blood. This stimulation will train the T cells to kill EBV infected cells and result in the growth of an EBV specific T cell line. We will then test the T cells to make sure that they kill the EBV infected cells and not your normal cells and freeze them. 