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Source: http://news.xinhuanet.com/english/2015-03/03/c_134031784.htm
Gorilla origins of two AIDS virus lineages confirmed: study
English.news.cn 2015-03-03 07:37:23
WASHINGTON, March 2 (Xinhua) -- Two of the four known groups of human AIDS viruses originated in western lowland gorillas in Cameroon, scientists said Monday.
The virus that causes almost all the cases of AIDS worldwide, called HIV-1, has jumped species to infect humans on at least four separate occasions, generating four HIV-1 lineages: groups M, N, O, and P.
Previous research has found that groups M and N originated in geographically distinct chimpanzee communities in southern Cameroon, but the origins of groups O and P remained uncertain.
The new study, published in the U.S. journal Proceedings of the National Academy of Sciences, conducted a comprehensive survey of simian immunodeficiency virus (SIV) infection in African gorillas.
The scientists screened fecal samples from western lowland gorillas, eastern lowland gorillas, and mountain gorillas in Cameroon, Gabon, the Democratic Republic of Congo, and Uganda for the presence of SIVs that are thought to be the precursors of HIV- 1...
Gorilla origins of two AIDS virus lineages confirmed: study
English.news.cn 2015-03-03 07:37:23
WASHINGTON, March 2 (Xinhua) -- Two of the four known groups of human AIDS viruses originated in western lowland gorillas in Cameroon, scientists said Monday.
The virus that causes almost all the cases of AIDS worldwide, called HIV-1, has jumped species to infect humans on at least four separate occasions, generating four HIV-1 lineages: groups M, N, O, and P.
Previous research has found that groups M and N originated in geographically distinct chimpanzee communities in southern Cameroon, but the origins of groups O and P remained uncertain.
The new study, published in the U.S. journal Proceedings of the National Academy of Sciences, conducted a comprehensive survey of simian immunodeficiency virus (SIV) infection in African gorillas.
The scientists screened fecal samples from western lowland gorillas, eastern lowland gorillas, and mountain gorillas in Cameroon, Gabon, the Democratic Republic of Congo, and Uganda for the presence of SIVs that are thought to be the precursors of HIV- 1...