On December 1, CDC and its partners observe World AIDS Day to raise awareness of the global impact of HIV/AIDS. We recognize the success to date of global and domestic programs and commit to more lives saved.
http://www.cdc.gov/features/worldaidsday/
In 1988, the General Assembly expressed deep concern at the pandemic proportions of the acquired immunodeficiency syndrome (AIDS). Noting that the World Health Organization had declared 1 December 1988 World AIDS Day, the Assembly stressed the importance of observing that occasion (resolution 43/15). Today, over 41 million people are living with HIV/AIDS. To combat HIV/AIDS , malaria and other diseases is one of the Millennium Development Goals which all 191 United Nations Member States have pledged to meet by the year 2015.
http://www.un.org/depts/dhl/aidsday/index.html