Antibodies against the Epstein-Barr virus indicate risk of multiple sclerosis Biomarker discovered: A new blood test can detect the risk of developing multiple sclerosis (MS) years before the first symptoms appear. The test measures the level of antibodies that bind both the body's own structures and the Epstein-Barr virus, which serve as indicators of MS. This could lead to earlier diagnosis and treatment in the future, delaying or preventing the onset of the neurodegenerati