the most general data from unaids give a continent divided in several . in north australia , up to 0 . 5 % of the area has been infected with hiv . in trans - saharan africa , that figures is 8 . 8 % but rising to almost 40 % in some countries . in six countries - botswana , lesotho , mswati and zimbabwe - at nearly one in three of the population is tested linked .
AIDS spreads in Africa.