History of HIV/AIDS

AIDS is caused by a human immunodeficiency virus (HIV), which originated in non-human primates in Central and West Africa. While various sub-groups of the virus acquired human infectivity at different times, the global pandemic had its origins in the emergence of one specific strain – HIV-1 subgroup M – in Léopoldville in the Belgian Congo (now Kinshasa in the Democratic Republic of the Congo) in the 1920s.

• http://en.wikipedia.org/wiki/History of HIV/AIDS
• Pages 79-82 - Quanmmen, D., 2012, The Chimp and the River: W. W. Norton and Company, New York, 174p.