AIDS

Unless rich nations step up efforts to curb AIDS, the U.N. estimates that the disease will kill 70 million people over the next 20 years. 95% of all people with AIDS or HIV live in developing nations, with the countries of sub-Saharan Africa particularly hard-hit. An estimated 15 million children under age 15 have lost their mothers or both parents as a result of AIDS. See articles.

See also: Tanzania | India | Russia | Kenya | Nepal | Romania