OFF TOPIC, but need help!!

I need some help regarding another disease, just wondering if anyone ever heard of it, or knows someone who has had it, anything anyone could give me would be appreciated..I already did check it out on internet, more interested in someone that has had direct dealings with this..OK, here goes..
My husband's brother has had CLL (chronic lymphocytic leukemia) for 14yrs, and now has JC Virus (which usually affects people with leukemia or AIDS with lowered immune systems), which leads to something called PML..Only about 10% of people can survive this, it can be treated experiementaly with anti-viral drugs and high doses of chemo..Once you have the PML you can possibly live only as long as a few months up to max. of 2yrs..We are from PA & he does have good DRs here, but if anyone knows of a certain hospital anywhere that deals with this, would love to know where..People with PML get very weak, he has lost use of right arm, speech problems, (almost like a stroke victim)..Anyway, any help or suggestions would be greatly appreciated..
Thanks In Advance