Research Article

Changes in B-Cell Counts and Percentages during Primary HIV Infection Associated with Disease Progression in HIV-Infected Men Who Have Sex with Men: A Preliminary Study

Figure 1

Procedure of sample selection. Over 2000 individuals were recruited and followed up in the MSM high-risk cohort. When they became HIV-positive, they were recruited into the PHI cohort. A total of 120 subjects were followed up in the PHI cohort. Clinical and laboratory measurements were taken as previously mentioned in Section 2.1. However, 75 did not meet the inclusion criteria. Finally, 23 RPs and 22 TPs were included in this study.