HIV infection - United States, 2008 and 2010.

At the end of 2009, approximately 1.1 million persons in the United States were living with human immunodeficiency virus (HIV) infection, with approximately 50,000 new infections annually. The prevalence of HIV continues to be greatest among gay, bisexual, and other men who have sex with men (MSM), who comprised approximately half of all persons with new infections in 2009. Disparities also exist among racial/ethnic minority populations, with blacks/African Americans and Hispanics/Latinos accounting for approximately half of all new infections and deaths among persons who received an HIV diagnosis in 2009. Improving survival of persons with HIV and reducing transmission involve a continuum of services that includes diagnosis, linkage to and retention in HIV medical care, and ongoing HIV prevention interventions.