***Blame the crowd which likes to go to “raves” and orgies.***
Much like the spread of AIDS could be traced to a homo get together on Fire Island in the early 1980s.
I've read a little about the "patient zero" of the U.S. epidemic. He was a flight attendant who was extremely promiscuous wherever he ended up flying overseas. The "gay disease" indeed had a "gay" origin in this country.