HIV-AIDS affects almost 50% of the African-American population. Out of that portion of the African-American population living with HIV-AIDS, about a quarter of it is older than age 50.
And there's the African-American trans community.
28% of the African-American trans community is affected by HIV-AIDS.
Here's a link to a video interview of a woman who hits all three categories, Helena Bushong.
Helena in addition to being the head of the Illinois Gender Advocates also has the distinction of being the first African American transwoman ever to visit the White House.
TransGriot Update: Helena recently e-mailed me to advise me she's no longer the head of Illinois Gender Advocates