Figure 2.

Infection of T helper cells with Th1- and Th2-produced HIV-1. SF162 and H671-B10 virus clones were produced in four or five replicates from Th1 and Th2 cells and used to infect either Th1 or Th2 cells in duplicate. Each line represents a virus clone replicate that established a productive infection, with Th1-produced virus presented in black and Th2-produced virus in red. The percentage of isolates resulting in productive infection is displayed in brackets. Infections were performed with three different TCID₅₀ values; 500, 100 and 20, of SF162 (A, CCR5 using) and H671-B10 (B, dual-tropic). CA-p24 production is depicted on the y-axis in logarithmic scale over the course of infection.