An estimated 98,400 (93,500-104,300) people were living with HIV in the UK in 2012. The overall prevalence was 1.5 per 1,000 population (1.0 in women and 2.1 in men). An estimated 21,900 people living with HIV were unaware of their infection in 2012.

There were 490 deaths among people with an HIV infection in 2012, a continuation of the decline since the introduction of antiretroviral therapy (ART). Those diagnosed with HIV late (CD4 count <350 cells/mm3) continued to have a ten-fold increased risk of death in the first year of diagnosis compared to those diagnosed early.