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HIV in the United States

November 7, 2011

Fast Facts
  • 1.2 million people in the United States are living with HIV infection and 1 in 5 are unaware of their infection.
  • MSM, particularly young, black MSM, are most severely affected by HIV.
  • By race, African Americans face the most severe HIV burden.

CDC estimates 1.2 million people in the United States (US) are living with HIV infection. One in five (20%) of those people are unaware of their infection. Despite increases in the total number of people in the US living with HIV infection in recent years, the annual number of new HIV infections has remained relatively stable. However, new infections continue at far too high of a level, with approximately 50,000 Americans becoming infected with HIV each year.

In 2009, an estimated 42,011 people were diagnosed with HIV infection in the 40 states with confidential name-based HIV infection reporting since at least January 2006. In that same year, an estimated 34,247 people throughout the US (50 states and the District of Columbia) were diagnosed with AIDS. Since the epidemic began, an estimated 1,108,611 people in the US have been diagnosed with AIDS.

More than 16,000 people with AIDS were estimated to have died in 2008, and nearly 594,500 people with AIDS in the US have died since the epidemic began.


By Risk Group

Gay, Bisexual, and Other Men Who Have Sex with Men (MSM)1 of all races and ethnicities remain the population most severely affected by HIV.


Estimates of New HIV Infections in the United States, 2009, for the Most-Affected Subpopulations

Estimates of New HIV Infections in the United States, 2009, for the Most-Affected Subpopulations

Subpopulations representing 2% or less of the overall US epidemic are not reflected in this chart.


Heterosexuals and Injection Drug Users also continue to be affected by HIV.

Blacks</b> continue to experience the most severe burden of HIV.


By Race/Ethnicity

Blacks continue to experience the most severe burden of HIV.


Estimated Rate of New HIV Infections, 2009, by Gender and Race/Ethnicity

Estimated Rate of New HIV Infections, 2009, by Gender and Race/Ethnicity


Latinos are also disproportionately affected by HIV.

  1. The term men who have sex with men (MSM) is used in CDC surveillance systems. It indicates the behaviors that transmit HIV infection, not how individuals self-identify in terms of their sexuality.




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