HIV AIDS: Difference between revisions
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[https://www.bbc.com/news/science-environment-21189141 by Helen Briggs, BBC] | [https://www.bbc.com/news/science-environment-21189141 by Helen Briggs, BBC] | ||
HIV, which causes Aids, emerged in humans in the 20th Century, but scientists have long known that similar viruses in monkeys and apes have existed for much longer. | HIV, which causes Aids, emerged in humans in the 20th Century, but scientists have long known that similar viruses in monkeys and apes have existed for much longer. | ||
=====The origin of HIV===== | |||
[https://www.britannica.com/science/AIDS/The-origin-of-HIV by Keith Dorwick 18/11/25 Britannica] | |||
Details of the origin of HIV remain unclear. However, a lentivirus that is genetically similar to HIV has been found in chimpanzees and gorillas in western equatorial Africa. That virus is known as simian immunodeficiency virus (SIV), and it was once widely thought to be harmless in chimpanzees. However, in 2009 a team of researchers investigating chimpanzee populations in Africa found that SIV in fact causes AIDS-like illness in the animals. | |||
