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  1. What Are HIV and AIDS? - HIV.gov

    Nov 12, 2025 · AIDS is the late stage of HIV infection that occurs when the body’s immune system is badly damaged because of the virus. In the U.S., most people with HIV do not develop AIDS …

  2. HIV and AIDS - World Health Organization (WHO)

    Jul 15, 2025 · Acquired immunodeficiency syndrome (AIDS) occurs at the most advanced stage of infection. HIV targets the body’s white blood cells, weakening the immune system. This makes it …

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  3. HIV/AIDS - Wikipedia

    HIV/AIDS research includes all medical research which attempts to prevent, treat, or cure HIV/AIDS, along with fundamental research about the nature of HIV as an infectious agent, and about AIDS as …

  4. HIV and AIDS: The Basics | NIH - HIVinfo

    May 28, 2025 · HIV stands for human immunodeficiency virus, which is the virus that causes HIV infection. The acronym “HIV” can refer to the virus or to HIV infection. AIDS stands for acquired …

  5. HIV/AIDS - Symptoms and causes - Mayo Clinic

    Feb 9, 2024 · HIV is spread through contact with genitals, such as during sex without a condom. This type of infection is called a sexually transmitted infection, also called an STI. HIV also is spread …

  6. AIDS | Definition, Diagnosis, Treatment, & Facts | Britannica

    Nov 18, 2025 · AIDS is an infectious disease caused by human immunodeficiency virus (HIV). HIV slowly attacks and destroys the immune system, leaving an individual vulnerable to a variety of other …

  7. About HIV | HIV | CDC

    Jan 14, 2025 · HIV (human immunodeficiency virus) is a virus that attacks the body's immune system. Without treatment, it can lead to AIDS (acquired immunodeficiency syndrome). There is currently no …

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  8. HIV and AIDS - Johns Hopkins Medicine

    AIDS (acquired immunodeficiency syndrome) is caused by the human immunodeficiency virus (HIV). This kills or impairs cells of the immune system and progressively destroys the body's ability to fight …

  9. What is AIDS? – International Association of Providers of AIDS Care

    AIDS is the most advanced stage of infection caused by HIV. The names HIV and AIDS can be confusing because both terms describe the same disease. However, most people with HIV do not …

  10. HIV/AIDS: Facts, Statistics, Symptoms, Causes, Diagnosis, and ... - WebMD

    Oct 6, 2025 · This is called acquired immune deficiency syndrome (AIDS). But treatment has come a long way for HIV. With HIV medications, you can live a long time, even if your infection has …