I finally caught on that you have joined the silver list. (I'm behind in general reading). I posted a copy of your post (as you probably already saw) requesting list members to address your questions found on news:sci.med.diseases.lyme not realizing you did directly join the list. Hopefully you don't get bombarded with double the attention from the same people! But at the same time, maybe some other readers of the newsgroup will learn something about CS.
Nancy