| [hiv-1 group n in cameroon and apparent viruses in the chimpanzee]. | the hypothesis of the recent origin of aids by way of one of several events of inter-species transmission has been widely accepted. whilst the primate hiv-2 reservoir has been clearly identified, the origin of hiv-2 is still uncertain. since 1994, collaborative studies on the variability of hiv-1 conducted at the yaoundé pasteur centre have confirmed the very great diversity of circulating hiv-1 group m subtypes. this research has led to the identification of a further branch of hiv-1 phylogenes ... | 2000 | 11030049 |