Anybody know what the threshold is between having HIV and full blown AIDS?

As I understand it AIDS is diagnosed when a patient rises above a certain level of T-cells. I think it's T-cells. I know very little about this.

But what can we infer about Laura Roxx's "level of infection" based on the viral load? Is she anywhere close to having actual AIDS?

Edit: Aapparently I got it wrong. I just read in another thread that the threashold is when the T-cell count falls below 20% of the normal count.

SO, can anything be inferred about hLaura's t-cell count based on her viral load. I would guess not, but I don't know enough about it to say for sure. Anyone?