In recent times it has being generally accepted that some viruses can be
transferred from Animals to human through the process know as Zoonosis.
Additionally, researchers has also concluded that HIV was transferred from chimpanzees to
Human as a result of human killing chimpanzees for food. However, it has now
been proved
that HIV (Human immune virus) only affect human being and as such can not reside
in chimpanzees, So HIV can from Humans. Zoonosis was indeed
one of the major disputes in verifying the origin of HIV, it led to the 1999
research when researchers from Alabama gathered to
make findings on the real Origin of HIV. For more information please see The
Genesis OF AIDS.