Hi Tristen I think there may be a small study underway in the UK on ME and Hep C, but dont quote me - I will try and find out more. Given Hep C is such a persistent virus, and has a strong ability to both change its form and to persist, I guess I'd expect to see the same type of co-morbidity with Hep C that you do with Lyme pathogens. This is a vast subject, and if I were an immunologist, I would be drawn to it because of all the interesting questions it raises about immunity and virology. Certainly when one of my friends went to a recent Hep conference, attending from a patient advocate point of view, she heard speakers say there was an emerging correlation between interferon treatment and CFS. For myself, I'd had Hep C for probably 20 years prior to treatment, and other co-morbid genetic conditions, and I was really very ill before I took it. I was better for at least five years afterwards, but in retrospect, I was in an insidious onset situation for the ME. I then got an intestinal parasite, had Hep B vaccinations for work, had a very stressful bit as a carer, and the balance tipped into full time, full on ME. So it was multicausal, and the interferon both helped and harmed. If that makes sense. It's not easy to simplify such a complex set of relationships between actions and outcomes.