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World AIDS Day --- December 1, 2000

"All Men---Make a Difference!" is the theme designated by the Joint United Nations Program on Human Immunodeficiency Virus (HIV)/Acquired Immunodeficiency Syndrome (AIDS) for this year's World AIDS Day, December 1, 2000. This year's theme encourages men to increase their awareness of the risk for HIV infection for themselves, their sex partners, and their families and to use their influence to help stem the HIV/AIDS epidemic. In the United States, most persons living with HIV infection and AIDS are men. Some men's behavior often places their sex partners at risk for infection. In cultures where there is a substantial imbalance in men's and women's social power, focusing prevention efforts on men is an essential step toward reducing HIV transmission.

As of June 2000, AIDS was reported among 753,907 persons in the United States, and 438,795 of these persons have died; an estimated 311,701 persons were reported to be living with AIDS (1). Although deaths from AIDS began to decline in the United States in 1996, primarily because of the use of effective combination antiretroviral therapy, AIDS deaths and AIDS incidence trends began to level by 1999 (2). Since 1992, HIV incidence in the United States has been relatively stable; an estimated 40,000 new HIV infections are expected to occur each year. Prevalence of HIV infection (number of persons living with HIV and AIDS) at the end of 1998 ranged from 800,000--900,000. Among these persons, approximately one third do not know they are infected with HIV (2). In addition, approximately 4% of the U.S. population (approximately 4--5 million persons) engage in behaviors that put them at high risk for HIV infection (3).

Worldwide, 36.1 million adults are living with HIV/AIDS; of these, 5.3 million became infected in 2000 (4). Of the approximately 21.8 million persons who have died from AIDS, 3.0 million died in 2000. Of all persons living with HIV, 90.0% live in sub-Saharan Africa, southeast Asia, or Latin America (4).

Additional information about World AIDS Day and HIV infection and AIDS is available from CDC's National Prevention Information Network, telephone (800) 458-5231, and on the World-Wide Web,; CDC's National AIDS and STD hotline, telephone (800) 342-2437; and CDC's Division of HIV/AIDS Prevention, National Center for HIV, STD, and TB Prevention World-Wide Web site,


  1. CDC. HIV/AIDS surveillance report. Atlanta, Georgia: US Department of Health and Human Services, CDC, 2000;12:1.
  2. CDC. HIV/AIDS surveillance update (in press).
  3. Anderson J. Measuring the impact of prevention policy on behavior in the United States: data from national surveys [poster]. Presented at the XIII International AIDS Conference, Durban, South Africa, July 9--14, 2000.
  4. Joint United Nations Programme on HIV/AIDS. AIDS epidemic update. Geneva, Switzerland: World Health Organization, December 2000:3--5.

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