In AIDS patients recruited at the Shattuck Hospital (n = 49), the frequency of Mo expressing CD16 was significantly increased compared to uninfected controls (Figure 5A), whereas absolute Mo counts were similar in AIDS (380±166 cells/μl, n = 37) and control subjects (435±220 cells/μl, n = 14; p = 0.442) based on analysis of white blood cell (WBC) counts. Here, FCGR3B is linked to AIDS.