The most up to date information on the disease is a protocol developed by Dr. Alson W. Sears, DVM. His official website is here; http://www.Treatment4Distemper.com
The protocol involves the off-label use of Newcastle Disease Virus vaccine to elicit an immune system response in the dog so that it can kill the virus.
My dog, Carmella has had this treatment and it really works! It stopped her disease-progression in its tracks. If you'd like to follow her progress and read her history, see still pictures and watch her on live webcam, you can go to my blog; http://artlifenewsblog.blogspot.com
Carmella has been doing really well and only has some myoclonic jerking from residual neuro damage caused before she was treated, but the virus is gone for good.