HIV/AIDS - Symptoms and causes - Mayo Clinic
WEBFeb 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 treated, it can take years before it weakens the …
About HIV | HIV | CDC - Centers for Disease Control and Prevention
WEBJan 24, 2024 · HIV is a virus that attacks the body's immune system. The only way to know if you have HIV is to get tested. There are many ways to prevent HIV, like using PrEP, PEP, condoms and never sharing needles. HIV treatment helps people live long, healthy lives and prevents HIV transmission.
HIV - Wikipedia
WEBClassification. HIV is a member of the genus Lentivirus, [15] part of the family Retroviridae. [16] . Lentiviruses have many morphologies and biological properties in common. Many species are infected by lentiviruses, which are characteristically responsible for long-duration illnesses with a long incubation period. [17] .
Human Immunodeficiency Virus (HIV) Infection
WEBMay 7, 2024 · Human immunodeficiency virus (HIV) infection (infection with either HIV-1 or HIV-2) destroys CD4+ lymphocytes and impairs cell-mediated immunity, increasing risk of certain infections and cancers. Initial infection may cause nonspecific febrile illness.
Pathogenesis of HIV Infection - PMC - National Center for …
WEBJun 6, 2013 · Multiple factors that associated with inflammation and immune activation appear to contribute to the permissiveness of mononuclear phagocytes (and other cell types) to HIV infection, particularly at the advanced course of disease.
HIV and AIDS - World Health Organization (WHO)
WEBJul 22, 2024 · HIV is spread from the body fluids of an infected person, including blood, breast milk, semen and vaginal fluids. It is not spread by kisses, hugs or sharing food. It can also spread from a mother to her baby. HIV can be …
What Are HIV and AIDS? - HIV.gov
WEBJan 13, 2023 · It is spread by contact with certain bodily fluids of a person with HIV, most commonly during unprotected sex (sex without a condom or HIV medicine to prevent or treat HIV), or through sharing injection drug equipment.
Human Immunodeficiency Virus (HIV) Infection
WEBHIV is transmitted through exchange of bodily fluids (semen, vaginal fluid, blood, breast milk) with an infected person, usually through vaginal or anal sex, sharing needles, or from mother to child (during pregnancy, birth, or breastfeeding).
HIV - National Institute of Allergy and Infectious Diseases …
WEBHIV, or human immunodeficiency virus, is the virus that causes acquired immune deficiency syndrome (AIDS). HIV attacks the immune system by entering and destroying CD4+ T cells, a type of white blood cell that is vital to fighting off infection. The destruction of these cells leaves people with HIV vulnerable to other pathogens and complications.
HIV and AIDS - World Health Organization (WHO)
WEBJul 30, 2024 · What is HIV? Is AIDS different from HIV? Without treatment, how quickly can a person living with HIV become ill? How is HIV transmitted? How is HIV infection treated? What does “undetectable” mean? What illnesses can affect people living with HIV? How can people get tested for HIV? Who is at more risk of HIV?