https://www.aids.gov/hiv-aids-basics/hiv-aids-101/statistics...
In 2014 in the US, men who have sex with men constitute more than two-thirds of new HIV diagnoses despite being 1-10% of the population.
In the 21 worst-off US cities, 1 out of every 5 gay men (!) have HIV: http://www.webmd.com/hiv-aids/news/20100923/1-in-5-gay-bi-me...
None of that, of course, means discrimination is not involved. Frankly, I don't think enough attention is being paid to the problem, if we have these grand plans of ending AIDS by 2030 while 20% of a subpopulation has the disease.