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This entry presents a global overview the HIV and AIDS epidemics, presenting data on prevalence, deaths, transmission, treatment and connected impacts on life expectancy, discrimination and education.The 1990s saw a substantial increase in the number of people infected with HIV and dying of AIDS.In South Africa 1.44% of the previously uninfected population was infected with HIV in 2015.Fortunately, the number of new cases in Sub-Sarharan Africa and other world regions has now been steadily decreasing each year.
This is not an indication of a security issue such as a virus or attack.
The number of AIDS-related deaths increased throughout the 1990s and reached a peak in 2004, 2005 when in both years 2 million people died.
Since then the annual number of deaths from AIDS declined as well and a decade later it was almost halved when 1.1 million people died in 2015.
In the chart below you can see how adult HIV prevalence has changed with time, by clicking the play button on the bottom left.
Data from both the UNAIDS/World Bank and IHME, Global Burden of Disease are shown in the two charts below.
AIDS in humans results in a gradual and persistent decline and failure of the immune system, resulting in heightened risk of life-threatening infection and cancers.