In addition, these changes in Vδ1−Vδ2−Vγ9− γδ T cells were not observed in untreated MS patients even after stratification to NEDA and EDA groups, further supporting the relationship of changes in Vδ1−Vδ2−Vγ9− γδ T cell percentages by IFN-β treatment. Here, IFNB1 is linked to myeloid sarcoma.