What Are HIV and AIDS? - HIV.gov
Nov 12, 2025 · 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.
HIV/AIDS - Symptoms and causes - Mayo Clinic
Feb 9, 2024 · It's caused by the human immunodeficiency virus, also called HIV. HIV damages the immune system so that the body is less able to fight infection and disease. If HIV isn't …
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 …
HIV & AIDS: Causes, Symptoms, Treatment & Prevention
Human immunodeficiency virus (HIV) is the virus that causes acquired immune deficiency syndrome (AIDS). HIV weakens your immune system by destroying your T-cells until you are …
HIV/AIDS: Facts, Statistics, Symptoms, Causes, Diagnosis, and ... - WebMD
Oct 6, 2025 · Discover how HIV spreads, how to prevent the virus progressing to AIDS, and where to get treatment.
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 …
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 …
What is HIV/AIDS? - World HIV Day
HIV and AIDS are terms often used interchangeably, but they represent distinct stages in the same disease process. This guide delves into the complexities of HIV/AIDS, explaining the …
HIV and AIDS - World Health Organization (WHO)
Jul 30, 2024 · The human immunodeficiency virus (HIV) targets cells of the immune system, called CD4 cells, which help the body respond to infection. Within the CD4 cell, HIV replicates …
HIV vs. AIDS: How They Differ & Getting Early Treatment
Mar 22, 2025 · People with AIDS also have HIV, as HIV is the first stage of AIDS. Learn about the differences, how the conditions overlap, and the treatment options.