Figure 5.

Viability of purified CD4+ T lymphocyte cultures after infection by paired HIV-1 strains. CD4+ T lymphocyte cultures were infected with NL4–3 or 49–5. Viability of the cultures also was assessed 10 days after infection by counting cells that excluded trypan blue, and results are expressed as a percentage of the viable cell counts in the uninfected control cultures; this experiment was performed in duplicate, and mean values are shown. (Inset) The p24 concentrations of these viruses in the culture medium over time. The color code is the same as in Fig. 2.