A recent study provides the strongest evidence yet that Epstein-Barr virus infection dramatically increases the risk of developing multiple sclerosis.
Study Findings and Evidence
•Researchers accessed medical records of 10 million U.S. military soldiers enlisted between 1993 and 2013.•Of 955 soldiers who developed multiple sclerosis, all but one had previously been infected with Epstein-Barr virus.•The study concluded that Epstein-Barr infection multiplies a person's risk of developing multiple sclerosis 32-fold, similar to the risk increase from heavy smoking for lung cancer.How Epstein-Barr May Trigger Multiple Sclerosis
•In multiple sclerosis, immune cells called T-cells mutate and pass the blood-brain barrier.•These T-cells attack the myelin membranes, the sheath of neurons, creating debris and plaques on the brain.•This disruption causes symptoms such as cognitive, visual, balance, and motor disorders.Unanswered Questions and Future Research
•The study leaves questions unanswered, such as why only one in a thousand people develop multiple sclerosis after Epstein-Barr infection.•Other risk factors include genetics, smoking, obesity, vitamin D deficiency, and working at night.•Researchers are pushing for vaccine trials, with Moderna recently starting a clinical trial using mRNA technology, though a previous GSK vaccine trial was stopped for not reducing Epstein-Barr infection.Key Takeaways
•Epstein-Barr virus infection increases multiple sclerosis risk 32-fold, based on a study of 10 million U.S. military soldiers.•The virus may trigger multiple sclerosis by causing T-cells to attack myelin membranes in the nervous system, leading to symptoms like cognitive and motor disorders.•While Epstein-Barr is a major risk factor, other factors like genetics and environment play a role, and vaccine trials are underway but face challenges.Conclusion
The study confirms Epstein-Barr as a significant risk factor for multiple sclerosis, but more research is needed to understand the full mechanism and develop effective prevention.
