These days everyone who butchers any kind of meat is really careful, wears gloves, rain suit, boots, face mask.
Monkey meat is where the HIV virus came from. Like influenza in wild geese, HIV in monkeys is not fatal to them.
But when the viruses cross over into humans they become deadly.
The Africans who butchered the monkey meat obviously did not take any precautions.
After the Africans got the disease they spread it by donation of blood, sharing of needles, and sexual activity mostly along the Hershey Bar Road.
In 1959 and 1960 two Congolese were stricken by the disease.
History of HIV/AIDS - Wikipedia, the free encyclopedia
From Africa it first spread to Europe and to America.
First known case was a black teen named Robert R. in St. Louis MO in 1969.
Robert Rayford - Wikipedia, the free encyclopedia
From there is was further observed in NYC and LA among gays males.
At first the CDC called it GRID -- Gay Related Immune Disease.
It's hard to imagine these gays boinking without condoms but apparently they were. Sickening.
And they indeed did get sick and 34 million have died. 37 million are living with the disease now. About 1.2 million of these will die per year.
HIV/AIDS
Google is your friend. You can google this all on your own.