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human immunodeficiency virus type 1
infectious agent
Also known as: HIV-1, human T-cell lymphotropic virus, type III
Learn about this topic in these articles:
comparison with HIV-2
- In AIDS: The origin of HIV
…strain of HIV, known as HIV-1 group M, have indicated that the virus emerged between 1884 and 1924 in central and western Africa. Researchers estimate that that strain of the virus began spreading throughout those areas in the late 1950s. Later, in the mid-1960s, an evolved strain called HIV-1 group…
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