[kristopolous]

The first-world people with access to world class health care that contracted it in urban environments were gay. Origins however, are a bit more murky.

Most of the worlds population don't have the financial resources or the proximity to say, the UCSF medical hospital, where such specialty physicians would be to study such a thing.

There's been quite a bit of discussion of how it got to Christopher Street in New York. My pet theory is that the international drug trade had quite a bit to do with it, but I'm just a computer programmer