From the published profile of seventeen abnormal cytokines in ME/CFS, IL-4, IL-7, and IFN-γ are involved with B cell development, maturation, and differentiation (20), and CXCL1 and CCL11 (eotaxin) are abundant in platelets (21–23). This evidence concerns the gene IL4 and myalgic encephalomeyelitis/chronic fatigue syndrome.