There is an excellent site about Autoimmunity / the diseases etc at John's Hopkns site:
http://autoimmunity.pathology.jhmi.edu/aboutcenter.cfm
I have a son (11 yr) diabetic/celiac - diabetes diagnosed Sept 2003, celiac confirmed by biopsy Aug 2004. A daughter (13yr) diagnosed hypothyroid age 4, Hypotonia at birth, Aspergers at age 7, Kawasaki June ...