Earlier this year, the most compelling evidence yet that the Epstein-Barr virus may cause multiple sclerosis (MS) appeared in the journal Science. In this installment of the In Conversation podcast, Dr. Hilary Guite asks Dr. Marianna Cortese, research associate at Harvard T.H. Chan School of Public Health and co-author of the study, about its findings and implications. Could it lead to better treatments for MS? Dr. Guite also hears from Dr. Antje Ronneberger, a recently retired family doctor, about her lived experience with MS.