MOG and myeloid sarcoma: Interestingly, a seroprevalence study measuring antibodies against the host encephalitogenic myelin oligodendrocyte glycoprotein (MOG)35−55 epitope and two mycobacterial peptides sharing sequence homology showed a significant difference between MS patients and healthy controls in levels of antibody positivity for MOG35−55 but not for the BCG-derived homologous peptides (198).