In a previous study [18], we found that the frequency of circulating total MAIT cells (phenotype: CD3+TCR Vα7.2+CD161++) was elevated in ME-SA, compared to healthy controls, multiple sclerosis and ME-MM, and also that the frequency of CD8+ MAITs within total MAITs was significantly elevated in ME-SA compared to ME-MM and healthy controls. This evidence concerns the gene KLRB1 and multiple sclerosis.