Scientists have identified a possible biological pathway showing how Epstein-Barr virus, a very common infection, could help trigger multiple sclerosis. The finding adds detail to a long-suspected connection between the virus and the neurological disease, which affects the brain and spinal cord.
According to the research, Epstein-Barr virus appears to activate specific T cells in the immune system. Those cells can then attack nerve cells, pointing to a mechanism that may help explain how the body’s defenses become misdirected in multiple sclerosis.
For years, researchers have linked Epstein-Barr virus to an increased risk of MS, but the exact process behind that relationship remained uncertain. By narrowing in on the immune response, the new work offers a more concrete explanation for how a common virus might contribute to lasting damage in the central nervous system.
The study could help shape future efforts to prevent, diagnose or treat multiple sclerosis by targeting the immune changes tied to Epstein-Barr virus. It also strengthens the broader scientific view that viral infections can play an important role in autoimmune disease.
