Anna Fogdell Hahn, researcher at the Department of Clinical Neuroscience at Karolinska Institutet in Sweden. MS linked to variant of HHV-6 (the CFS/AIDS virus) through new method Researchers at Karolinska Institutet have developed a new method to separate between two different types of a common herpes virus (HHV-6) that has been linked to multiple sclerosis. By analyzing antibodies in the blood against the most divergent proteins of herpesvirus 6A and 6B, the researchers were able to show that MS-patients carry the herpesvirus 6A to a greater extent than healthy individuals. The findings, published in Frontiers in Immunology, point to a role for HHV-6A in the development of MS. Multiple sclerosis, MS, is an autoimmune disease that affects the central nervous system. The cause of the disease is unclear, but one plausible explanation is a virus tricks the immune system to attack the body's own tissue. Human Herpesvirus 6 (HHV-6) has previously been associated with MS, b...