IFNG and myeloid sarcoma: Here we undertake acomprehensive analysis of the T-cell response to EBV in MS, using flow cytometry andintracellular IFN-γ staining to measure T-cell responses to EBV-infectedautologous lymphoblastoid cell lines and pools of human leukocyte antigen(HLA)-class-I-restricted peptides from EBV lytic or latent proteins andcytomegalovirus (CMV), in 95 patients and 56 EBV-seropositive healthy subjects.