This year's Conference on Retroviruses and Opportunistic Infections offered findings that could change what it means to live with HIV.
Elite controllers are people with HIV antibodies, but whose viral loads remain low.
Brown passed away from cancer at his home in Palm Springs, Calif.
Brown, who doctors declared "functionally cured" of HIV, is spending his last days surrounded by love.
The cells of a 66-year-old woman are completely clear of the virus, researchers say.
American Gene Technologies will begin trials in September in the Baltimore-Washington, D.C., metro area.
Still, scientists are stressing that the results are only preliminary.