HIV-2 was isolated in 1986 from people with AIDS in west Africa.[1] It is thought to have present in the population for a long time previously. It is still found mostly in West Africa. Immune system damage in HIV-2 patients tends to come more slowly than it does in HIV-1. It accounts for about one-tenth of one percent of HIV infections worldwide.[2]

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Andrew Kuper (President, LeapFrog Investment) talks about problems and solutions to the ongoing AIDS crisis in his native South Africa. The BigThink video is titled "The Future of AIDS in Africa": Video at Bigthink


  1. Brun-Vezinet F, Rey MA, Katlama C, et al. Lymphadenopathy-associated virus type 2 in AIDS and AIDS-related complex. Clinical and virological features in four patients. Lancet. 1987 Jan 17;1(8525):128-32. Abstract
  2. Eholié S, Anglaret X. Commentary: decline of HIV-2 prevalence in West Africa: good news or bad news? Int J Epidemiol. 2006 Oct;35(5):1329-30. Epub 2006 Jul 17. Full Text
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