December 1, 2012 marked the global community’s 25th observance of World Acquired Immune Deficiency Syndrome (AIDS) Day. The Joint United Nations Programme on human immunodeficiency virus (HIV)/ AIDS (UNAIDS)’s World AIDS Day Report 2012 cited historic gains and laudable achievements towards ending the global AIDS epidemic. HIV incidence fell by 50% in 25 low- and middle-income countries between 2001 and 2011—more than half of these were in sub-Saharan Africa where the majority of new HIV infections occur. In 14 countries, AIDS-related deaths declined by over 50% between 2005 and 2011.
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