A Study of the Safety and Efficacy of EBV Specific T-cell Lines

Inclusion Criteria: * Capacity to provide informed consent * Age ≥ 18 years old * Confirmed treatment-refractory EBV reactivation or EBV-related lymphoma * ECOG of 2 or less Exclusion Criteria: * Medical condition requiring a corticosteroid dose greater than Prednisone 0.5mg/kg/day (or equivalent) at the time of the infusion. * Patient has received T-cell depleting antibodies or stem cell transplantation in the 28 days prior to proposed date of anti-EBV T-cell line infusion * Patient has received a solid organ transplant in the 3 months prior to proposed date of anti-EBV T-cell line infusion. * Pregnant or nursing females * Life expectancy of less than 3 months due to a condition unrelated to the EBV- related disease. * Active uncontrolled GVHD * Active uncontrolled SOT rejection episode DONOR ELIGIBILITY: An allogeneic donor must be a first-degree relative with at least 3/6 HLA compatibility, have consented to donate peripheral blood mononuclear cells, and fulfill the same criteria for stem cell donation according to the hospital's standard operating procedure.