Hi Ivan, > Whatever the PD cause, whether it was avoidable or not, has there has > been some genetic change in every PWP? > By the way, what do folks think of the VIRAL theory that > I sent to the List early this morning I read the post with interest, however, my background in genetics and microbiology is insufficient to allow comment. A geneticist would be a good person to consult on this, and might be very interested in pursuing such a theory. Best regards, Kathrynne -- Kathrynne Holden, MS, RD "Nutrition you can live with!" Medical nutrition therapy http://www.nutritionucanlivewith.com/ Tel: 970-493-6532 // Fax: 970-493-6538 "If we knew what it was we were doing, it would not be called research, would it?" -Albert Einstein