That´s why I don´t think the Ritux and Lyme findings are in completely separate subsets - because it is likely that there has already been some overlap. As I recall, there was actually a patient in the last Ritux study whose illness had started with Lyme. I might be remembering someone else, but I think she (could have been a he) was one of those who had been in a previous study, and that she was a responder the first time but not the second (or the other way around). Who knows if this person still had Lyme? It seems likely to me that the Ritux studies have already included others whose illnesses were triggered by Lyme as well.