HIV and AIDS Statistics - Worldwide

Updated December 2015

At the beginning of 2015, there were 36.9 million [34.3 million – 41.4 million] people living with HIV. This reflects the continued large number of new HIV infections and a significant expansion of access to antiretroviral (anti-HIV) therapy, which has helped reduce AIDS-related deaths, especially in more recent years. Currently, 15.8 million people access antiretroviral therapy.

Worldwide, 2 million [1.9 million – 2.2 million] people became newly infected with HIV in 2014, down from estimates from previous years. 25 countries have seen a 50% or greater drop in new HIV infections since 2001. In 2011, new infections in children were 43% lower than in 2003, and 24% lower than 2009.

AIDS-related deaths are decreasing: In 2012, 1.6 million [1.4 million – 1.9 million] people died from AIDS-related illnesses, down from 1.7 million [1.5 million–1.9 million] in 2011 —24% fewer deaths than in 2005. AIDS-related deaths have fallen by 42% since the peak in 2004.

An aging epidemic: An increasingly significant trend in the global HIV epidemic is the growing number of people aged 50 years and older, who are living with HIV. Worldwide, an estimated 3.6 [3.2–3.9] million people aged 50 years and older are living with HIV. This “aging” of the HIV epidemic is mainly due to three factors: the success of antiretroviral therapy in prolonging the lives of people living with HIV; decreasing HIV incidence among younger adults shifting the disease burden to older ages; and the often-unmeasured, and thus often overlooked, fact that people aged 50 years and older exhibit many of the risk behaviours also found among younger people.


1. UNAIDS "AIDS by the numbers 2015"