I wonder if Dr. Freedman compared the levels of EBV antibodies before and after the procedure. If the immune system was completely wiped out, it should have removed any infection from the EBV and perhaps this is why they are not seeing anymore symptoms or progression?! That is, if you believe in the EBV theory.
I personally was given a diagnosis of either "just about to get mono" or "just recovering from mono" in my early twenties. My grandfather deteriorated rapidly from Alzheimer’s, perhaps this was my genetic flaw. I subsequently was diagnosed with MS at 30.