Does this hypothesis also explain how hominids, after being "smooth bodied" in Africa for millions of years; and remain so to this day except for those violated by non-Africans: Once again acquire body hair as well as the pubic parasite of the Gorilla once they left the continent?

What made human blood once more attractive to the parsites of Gorillas, when we are asked to believe that the two species went separate 'evolutionary roads' some 7mya; before the evolution of Australopithecenes, before Chimps and Homonids diverged?