Click on "People living with HIV" on the left side of this map: http://aidsinfo. unaids. org/ Then select "People living with HIV - All ages." Move the timeline at the bottom to 2015 and hover over South Africa to view the amount of people living with HIV in 2015. Then select the year 1990 on the timeline on the bottom, and hover over South Africa again. How does the prevalence of the HIV virus in South Africa in 1990 compare to the prevalence in 2015? What does this suggest about South Africa’s AIDS prevention measures over that time span?