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HHV-6A (but not HHV-6B) linked to increased risk of multiple sclerosis

Karolinska Institute researchers developed a novel serological assay to determine that individuals with antibodies to HHV-6A early proteins are more likely to develop MS. HHV-6A antibodies were the highest in the presence of elevated EBV antibodies, suggesting that the two viruses could jointly contribute to the development of MS.