Hi Sorin,
It's true that some people may have been better with ARVs (and it didn't work on some) but it doesn't mean that these people have had a HIV like virus. From what I read, ME/CFS is not immunodeficiency virus. You don't die because the immune system is weak when you have ME/CFS, actually I even read that you don't die earlier.
Hip said on PR that ARVs have a big spectrum of action, so they also act on herpes viruses. A lot of people have improved with antivirals. Was it because antivirals target retrovirus? I don't think so, rather than because it targets herpes and remodulate the immune system.
Is an retrovirus implicated in ME/CFS? I don't know but be sure that Ron Davis is doing the maximum to discover whatever is implicated.
Rose49 said "from Ron: We are testing for ALL viruses, bacteria, funguses and parasites. We are even testing for organisms that have never been seen before by doing elaborate sequence comparisons. First we eliminate the human DNA in the sample. Then we compare sequences of DNA (not human - those are gone) that we find in the individual to every sequence that's ever been done in the entire world. We do not require a perfect match, which means we can find organisms that have never been seen before because every organism is related to some organism that HAS been found. We are using very heavy computational analysis to do this."
Maybe following his research and read some threads about it would make you feel better.