Summary
HIV has affected individuals of every race, ethnicity, age group, socioeconomic status, sexual orientation, and lifestyle for more than 3 decades. But not every population has been affected equally, and certain groups continue to have HIV prevalence rates out of proportion to their percentage of the total US population. Disproportionately affected populations include:
- African Americans in general have higher prevalence rates of HIV infection, with some groups within the African American community at higher risk than African Americans generally. Complex historical and cultural factors—including racism and discrimination, poverty, denial, stigma, homophobia, and limited access to healthcare services—have all contributed to African Americans’ greater vulnerability to HIV infection.
- Representing approximately 16% of the US population, in 2009, Hispanics accounted for 20% of new HIV infections. HIV infection rates among this population were nearly 3 times higher than among whites.
- Throughout the HIV epidemic, men who have sex with men (MSM) have represented the largest percentage of people diagnosed with HIV infection and AIDS. MSM with a history of injection drug use have higher rates of infection.
- Comprising about 1% of the total number of US HIV cases, Asians and Pacific Islanders have been experiencing steadily increasing numbers of HIV diagnoses.
- Although the numbers of HIV cases among American Indian/Alaska Natives (who comprise 1.5% of the total US population) remain small, relative to their population size, members of this population group rank third in rates of HIV diagnoses.
The US Centers for Disease Control and Prevention (CDC) has reported that, of the approximately 1.2 million HIV-positive Americans, 1 in 5 (20%; approximately 240,000) are not aware of their infection [CDC HIV Surveillance 2011]. This substantial number of undiagnosed infections underscores the importance of promoting routine HIV testing, so that these persons can access care, thereby enhancing their own health and reducing community-level HIV viral burdens.
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