FIG. 1.

Plasma viral RNA copies per milliliter of plasma were quantified by the bDNA signal amplification assay specific for SIV (limit of detection is 125 copies per milliliter of plasma). Peak viral loads occurred at 1 to 2 weeks postinfection, and set point viral loads were established by 8 weeks postinfection. Results for the rapid progressor RM11 are shown with open boxes, for the four intermediate progressors in gray lines, and for the slow progressor RM16 in the solid black line.