Table 4. Summary of virologic measures.
| Sample | Measure | # Labs that tested samples | # Labs with + Test | Consensus | Typical levels in ART-suppressed patient | Fold Difference |
| Plasma | HIV RNA | 4 | 2 labs (3 samples) | ?Intermittent positive, ?<1 copy/ml | 1–2 copy/ml | 2–20 |
| PBMC | HIV DNA | 4 | 0 | Negative (≤1 in 106–7) | 751 per 106 total PBMC [18] | 750–7500 |
| PBMC | HIV RNA | 3 | 0 | Negative (≤1 in 106–7) | 66 per 106 total PBMC [18] | 66–660 |
| Sorted cells from blood | HIV DNA | 1 | 0 | Negative | Unknown | |
| Sorted cells from blood | HIV RNA | 1 | 0 | Negative | Unknown | |
| Peripheral CD4+T | IUPM | 2 | 0 | Negative (≤1 IU/107–9 cells) | 1 per 106 CD4+T [8], [9], [11], [12] | 10–1000 |
| CSF | HIV RNA | 2 | 0 | Negative | ||
| CSF cells | HIV DNA | 1 | 0 | Negative | ||
| Lymph node | HIV DNA | 1 | 0 | Negative | 1–12 copies/100 ng [14] | |
| Lymph Node | HIV RNA | 1 | 0 | Negative | ≤4 log10 copies/g (FDC) [14] | |
| Rectum (biopsy or cells) | HIV DNA | 2 | 1 | ?Intermittent positive, <1 in 106 cells | 777 per 106 total gut cells [18] | 780 |
| Rectum (biopsy or cells) | HIV RNA | 3 | 0 | Negative (<1 in 106–7) | 21 per 106 total gut cells [18] | 21–210 |
| Ileum (biopsy or cells) | HIV DNA | 1 | 0 | Negative (≤1 in 106) | 415 per 106 total gut cells [18] | 415 |
| Ileum (biopsy or cells) | HIV RNA | 2 | 0 | Negative (≤1 in 106) | 37 per 106 total gut cells [18] | 37 |