Which of the following regions in the world will witness the sharpest drop in life expectancy?

A new data shows that the global AIDS epidemic will cause a sharp drop in life expectancy in dozens of countries, in some cases, declines of almost three decades. Several nations are losing a century of progress in extending the length of life. Nations in every part of the world, 51 in all, are suffering declining life expectancies because of an increasing prevalence of HIV infection. The impact is occurring in Asia, Latin America and the Caribbean, but is the greatest in Sub-Sahara Africa, a region with only ten percent of the world’s population, but 700% of HIV infections.
    Seven African countries have life expectancies of less than 40 years. For example, in Botswana, where 39% of the adult population is infected with HIV, life expectancy is 39 years. But by 2010, it will be less than 27 years. Without AIDS, it would have been 44 years. Life expectancies throughout the Caribbean and some central American nations will drop into the 60s by 2010, when it would otherwise be in tile 70s without AIDS.  In Cambodia and Burma, they are predicted to decline to around 60 years old, for what would have been in the mid-60s. Even in countries where the number of new infections is dropping, such as Thailand, Uganda and Senegal, small life expectancy drop is forecast. Back in the early 1990s, we never would have suspected that population growth would turn negative because of AIDS mortality. In less than 10 years, we expect that 5 countries will be experiencing negative population growth because of AIDS mortality, including South Africa, Mozambique, Lesotho, Botswana and Swaziland.