An uncommon reaction to a common infection is a very sound theory(as well as a retrovirus) as the most common immune abnormality is nk dysfunction which would give us these unusual reactions to common infections and i think would then put us in a category of immunodefiency disorder. This could be a primary immune disorder or secondary to a retrovirus i guess. The Japenese have called cfs a nk disorder for along time now. From my own research , it seems very hard to increase nk activity consistently and as has been said before its going to take a combo of improve the immune system.nk function and treating the current infections going on. I think once these viral/infectious loads are down, they can be kept down through maintaining the immune system in some way. Its all interesting stuff going on, just not happening quickly enough. cheers!!!