Session on HIV/AIDS (UNGASS). Many IDUs are also sex workers or clients of sex workers, increasing the likelihood of HIV/AIDS spreading to the general population. Awareness of HIV status among at-risk populations is low. According to a 2004-2005 study cited in the UNGASS report, 18.1% of IDUs, 15.4% of MSM, 14.8% of sex workers, and 3.3% of clients of sex workers had received HIV testing in the previous 12 months and knew their test results (Hoshi et al., 2007). Stigma and discrimination persist and many people living with HIV hide their status for fear of losing their jobs, social status, and the support of their families and communities, thus decreasing the likelihood that they will receive proper treatment and increasing the chances of HIV spreading undetected.