More than 1.1 million people in the United States are living with HIV infection, and almost 1 in 6 (15.8%) are unaware of their infection.
Gay, bisexual, and other men who have sex with men (MSMa), particularly young black/African American MSM, are most seriously affected by HIV.
By race, blacks/African Americans face the most severe burden of HIV.
CDC estimates that approximately 50,000 people in the United States are newly infected with HIV each year. In 2010 (the most recent year that data are available), there were an estimated 47,500 new HIV infections.a Nearly two thirds of these new infections occurred in gay and bisexual men. Black/African American men and women were also highly affected and were estimated to have an HIV incidence rate that was almost 8 times as high as the incidence rate among whites.
