# Common virus found to trigger multiple sclerosis, study reveals

Biologists have identified how the Epstein-Barr virus, a common pathogen, triggers the development of multiple sclerosis. The finding clarifies a long-suspected link between the virus and the autoimmune disease, potentially paving the way for preventive vaccines or therapies.

**Importance:** 4/5

## Sources

### Science
- [Nature](https://www.nature.com/articles/d41586-026-02204-1) — 2026-07-15