Kinetics of virus production in IL-2–stimulated PBMCs obtained from mono–HIV-1–infected (A), or mono–HTLV-II–infected (B) individuals.

Supernatants from PBMC cultures were harvested every 3 to 5 days. Supernatants were tested for concentrations of HIV-1 and HTLV-II p24 Gag Ags; the results are representative of 3 independent experiments performed at 6-month intervals.