When the AIDS studies were first made in the 80s the CDC, WHO, UNAIDS stimated that by 2010 the 25% of the world population will have been infected with hiv, thanks GOD they were absolutley wrong, its true that the poorest countries like africans have very big prevalence like botswana 25%, but AIDS is not their only problem unfurtunally, more people die in africa from dengue, paludism, dehidratation, malaria, ect.