"Furthermore, DHT stimulated XMRV replication by 3-fold, whereas androgen inhibitors (casodex and flutamide) suppressed viral growth up to 3-fold. Findings suggest that integration of the XMRV LTR into host DNA could impart androgen stimulation on cellular genes." http://www.ncbi.nlm.nih.gov/pubmed/19906923 Makes me wonder if a natural alternative -- saw palmetto (Serenoa repens) might also indirectly inhibit XMRV, because of it's effect on DHT? http://www3.interscience.wiley.com/journal/76945/abstract?CRETRY=1&SRETRY=0 ???