Royston, re your post to me.
My only problem with your first paragraph is the expression "your WHO expert."
It should of course be "the WHO expert" i.e. the Head of WHO Aids Department.
All the rest I knew already and is not at all contentious to me or anyone else here I am sure.
You then talk about what I am saying "with all my scientific knowledge"
That is where we differ.
I have no specialist knowledge of this. That is why I rely so heavily on the opinions of genuine experts in the field.(How you ridiculed me for quoting experts!) And guess what Royston.
None of them agree with you.
And that is why I am certain that you are wrong.