Approximately one iArm and one iLeg.

I am surprised it is this small. I am sure part of the liars (which is what they are) are doing it for fame and to be the one. Others (liars too) are doing it to keep their jobs, whether that be to get money to do science, or just to cling on. And forget turning someone in. It will ruin your career.

What you are thinking about is called long-term non-progressers. If the virus can't actually get into the cell, which is what we are talking about here, means that while there might be some HIV in the blood (floating around in the liquid part), it can't actually infect any of the cells. No infection, no disease.

The genetic 'defect' that causes people to be immune to HIV is not very common in the US. Descendants from the Western European countries have a higher probability of having these mutations.