I found this question & the information really interesting for a couple of reasons that have always really botherered me. Two days before I had the surgery that made my RSD spread from my hand & become uncontrollbable I put my dod down from an undiagnosed autoimmune disorder. I have always wondered if whatever made him die didnt have something to do with me. I have also been sick with the Parvo Virus in humans. Also known as the fifth disease. Its much worse for adults than it is for children & I was very sick. Now I wonder if this isnt somehow related. I wish someone knew enough to tell me for sure. I wish they had been able to diagnosis my dog before he died. He battled the condition for years but suddenly got worse with seizures right before he died. It was awful. We ran every test we could on him with the vet finally just classifling it autoimmune. The whole thing is just wierd. Thanks for the info.