The HIV/AIDS epidemic began mostly back in the 1980s. It is said that it began originally in chimpanzees somewhere in Western Africa. While some assume that someone might have had to “get it on” with the chimp, that was not how it crossed over. Rather, since HIV can be passed via blood too, a person likely ate a chimp and caught the virus. This slowly increased and began to affect humans. While many assumed only gay men could catch and spread it, this all changed in the 1990s.
When LA Lakers star Magic Johnson caught HIV from unprotected relations with a woman, it was proven to be an issue for both sexes. Yet now we also know there are some with resistance to it. Studies found that a gene mutation known as CCR5-Delta 32 makes a person resistant to the human immunodeficiency virus. This also, by proxy, makes those with this mutation resistant to AIDS too. On top of this, scientists found this gene mutation could have also helped people survive the Black Plague. If that is the case, this is likely a gene mutation that has been happening in our human evolution for quite a while now.