JAMA Network JAMA Neurology : Epstein-Barr Virus Antibodies and Multiple Sclerosis
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Mar 9, 2026 Hannes Vietzen, principal investigator at the Center of Virology in Vienna studying Epstein-Barr virus links to multiple sclerosis. He discusses why EBV is tied to MS and how specific EBV antibodies may help differentiate MS from other neuroinflammatory disorders. The conversation covers study design, longitudinal antibody patterns, and peptide-focused next steps.
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EBV Molecular Mimicry Drives Multiple Sclerosis
- EBV likely plays a central causal role in MS through molecular mimicry of CNS antigens.
- Hannes Vietzen explains immune responses to EBV cross-react with CNS targets, suggesting EBV infection is necessary for much MS pathogenesis.
Persistent EBNA1 Titers Specifically Mark MS
- Persistent high EBNA1 peptide IgG levels over multiple timepoints were specific to MS patients in the study.
- Vietzen measured EBV peptide antibodies at four visits and found only MS patients maintained high titers consistently.
Multiple Timepoints Improve EBV Diagnostic Value
- Single timepoint EBV antibody tests are unreliable because titers fluctuate; multiple samples improve diagnostic accuracy.
- The study used four plasma samples per patient and found transient high titers in MOGAD/NMOSD but persistent titers in MS.