TABLE 2.
Viral load in PBMC of baboons after serial passage of virus in whole blood and bone marrow transfera
| No. of wk postinfection | Viral load in baboon no. (passage):
|
|||||
|---|---|---|---|---|---|---|
| 12281 (source) | 10568 (1) | 11999 (2) | 11966 (3) | 12741 (4) | 12933 (5) | |
| 2 | NT | 10,000 | 10 | 10,000 | 10,000 | 1,000 |
| 4 | 1,000 | 100 | 10 | 1,000 | NT | 100 |
| 8 | 100 | 100 | 10 | NT | 10 | 10 |
| 12 | 100 | 10 | 1 | 100 | 100 | 10 |
| 16 | 10 | 1 | NT | 10 | 10 | 10 |
| 20 | NT | 1 | 1 | 10 | ||
| 24 | NT | 100 | 1 | 10 | NT | |
| 52 | 1 | 1 | 100 | 10,000 | 1,000 | |
a
The number of HIV-2-infected cells in baboon PBMC was determined by using the infected cell titration assay as previously described (5). Five- to ten-fold serial dilutions of 106 baboon PBMC were cocultured in a 24-well tissue culture plate with 106 human PBMC that had been stimulated with PHA. The infected cell titration cultures were monitored over a 28-day period for virus production twice weekly by using the RT assay (23). NT, not tested.