I am beginning to believe that most of us alive today got it from our parents. I think, as we know, the illness has been around for over 100 years. And it just kept being passed on and on, through sex and blood. But also being passed parent to child. Then it just eventually hit critical mass.
But, I agree with Peterson also, there is another factor as to who gets the disease. Another infection that gives the immune system a one-two punch when combined with the retrovirus. Vaccines would have the same effect. Cortisol (which means stress can be a trigger) and hormones, could also make the difference in who develops the illness and who does.
I don't think genetics (except the retrovirus that is in the genes) affects it.
Good news, I see, is that it may not take that much to get this thing under control. Think about it, in HIV, the virus is aggressive and eventually the immune system fails and can not recover on its own. The person will die relatively soon.
But evidently, the immune system in CFSers is already putting up a good fight and holds its own for a long time. Also, seems some people do get better and even recover. (although a future relapse is always possible.)
Remember, Coffin said that the low replication rate of XMRV would not bode well for treatment. But, looks like that is not the case. Soooo, maybe if replication can be stopped, then our immune system can get a handle on it, since it is already fighting and sometimes winning on its own. Just a little boost and a little help in the battle, and it might work.
But I do think that if the virus gets into tissue, lots of it, then damage might be done that leads to cancers or a more permanent condition.
We'll just have to see, huh.
But I see lots of hope here.