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HIV
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Transmission electron micrograph of HIV-1 virus particles (red) budding and replicating from a segment of a chronically infected H9 cell (blue). Particles are in various stages of maturity; arc/semi-circles are immature particles that have started to form but are still part of the cell. Immature particles slowly change morphology into mature forms and exhibit the classic "conical or spherical-shaped core." Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. (Human Immunodeficiency Virus, Acquired Immune Deficiency Syndrome, AIDS)
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HIV

virus
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Also known as: human immunodeficiency virus
Written and fact-checked by
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human immunodeficiency virus

News •

HIV drug access remains a major challenge despite promising trial results • Jan. 10, 2025, 10:35 PM ET (News-Medical)
SIT chargesheets Munirathna for rape, honeytrap and attempt to infect others with AIDS • Dec. 27, 2024, 4:58 AM ET (The Hindu)
Gambia has low HIV prevalence - NAS director • Dec. 24, 2024, 3:31 AM ET (The Point)

HIV, retrovirus that attacks and gradually destroys the immune system, leaving the host unprotected against infection. HIV is classified as a lentivirus (meaning “slow virus”). Persons who are infected with HIV often die from secondary infections or cancer. AIDS is the final stage of HIV infection. For detailed information on HIV and disease, see AIDS.

This article was most recently revised and updated by Kara Rogers.