What Are HIV and AIDS? - HIV.gov
Jan 23, 2026 · HIV (human immunodeficiency virus) is a virus that attacks cells that help the body fight infection, making a person more vulnerable to other infections and diseases.
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 …
HIV - Wikipedia
In most cases, HIV is a sexually transmitted infection and occurs by contact with or transfer of blood, pre-ejaculate, semen, and vaginal fluids. [6][7] Non-sexual transmission can occur from an infected …
HIV and AIDS - World Health Organization (WHO)
Jul 15, 2025 · There is no cure for HIV infection. However, with access to effective HIV prevention, diagnosis, treatment and care, including for opportunistic infections, HIV infection has become a …
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 …
Understanding HIV: What You Need to Know - aids.org
HIV stands for Human Immunodeficiency Virus. It attacks the immune system, specifically the CD4 cells (T cells), which help the body fight off infections. If left untreated, HIV can lead to AIDS (Acquired …
HIV | HIV Symptoms | AIDS | MedlinePlus
Mar 26, 2025 · HIV (human immunodeficiency virus) attacks the body’s immune system. There is no cure but it can be treated with medicines. To know if you have HIV, get tested.