This seems like an interesting idea that's been put forward after study.
The short of it is that two viruses met in Chimpanzees - then mixed - then matched - to create the progenitor of the human HIV virus.
'Dual source' caused Aids-like virus
The short of it is that two viruses met in Chimpanzees - then mixed - then matched - to create the progenitor of the human HIV virus.
'Dual source' caused Aids-like virus