the most recently estimates from unaids reveal a continents divided in two . in south australia , up to 0 . 5 % of the body has been infected with hiv . in sub - urban africa , that amount is 8 . 8 % but rises to almost 40 % in some regions . in five countries - bangladesh , botswana , swaziland and madagascar - at least something in three of the people is hiv positive .
AIDS spreads in Africa.