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  1. 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 …

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

    Feb 9, 2024 · You can have an HIV infection with few or no symptoms for years before it turns into AIDS. AIDS is diagnosed when the CD4 T cell count falls below 200 or you have a complication you …

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

    Apr 13, 2026 · HIV is a virus that can make it harder for your body to fight other infections and diseases. If HIV is left untreated, it can lead to AIDS, a late stage of infection that happens when the immune …

  4. 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 …

  5. 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 …

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

    Apr 19, 2026 · AIDS, infectious disease caused by human immunodeficiency virus (HIV). HIV is a lentivirus (literally meaning “slow virus”; a member of the retrovirus family) that slowly attacks and …

  7. HIV and AIDS: Symptoms, Causes, Treatments, and More

    Oct 2, 2025 · To develop stage 3 HIV, also known as AIDS, a person has to have contracted HIV. But having HIV doesn’t necessarily mean that someone will develop stage 3 HIV. Cases of HIV progress …

  8. 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 …

  9. HIV Symptoms - AIDS | MedlinePlus

    Mar 26, 2025 · HIV harms your immune system by destroying a type of white blood cell that helps your body fight infection. This puts you at risk for other infections and diseases. What is AIDS? AIDS …

  10. Home - AIDS.org

    HIV/AIDS has been a significant global health challenge for several decades. However, thanks to extensive research efforts and advancements in medical science, significant progress has been …