Okay, I found one of my favorite references on the topic and in this study the oldest age at presentation of symptoms was 71. I will amend my first post in a different color. Sorry. But, the point does remain that it can be seen to present with symptoms after age 70. Here is the reference:

http://www.docguide.com/news/content...2571FA00692EDE

Nancy, we have to distinguish between the first onset of symptoms and the beginning of the disease. We all know that the disease can begin without symptoms and that the symptoms may not appear for some years. I don't know if the experts can put any timeline on when the damage to the CNS actually begins. It would depend on whether the first lesions "spoke up" with symptoms. So my statement in my post is when the disease "presented." this last comment was added a little later.

Quix