Deficient (<20ng/mL), or insufficient(21-29ng/mL) Vit D levels are reported in MS (6)Higher levels of ultraviolet B (UVB) irradiation are strongly associated with the prevalence of MS (r=-0.80, p<10-5) (7)Association between rs731236 (Taq-1) gene polymorphism within vitamin D Receptor (VDR) with MS (8). The gene discussed is VDR; the disease is myeloid sarcoma.