Man "cured" of AIDS: Timothy Ray Brown

Timothy R. Brown attends a press conference to announce the formation of the Timothy Ray Brown Foundation on July 24, 2012, in Washington, DC.

Brown, known as the "Berlin patient," says doctors have told him he's "cured of AIDS and will remain cured." His case is rare:

Brown had a blood stem cell transplant in 2007 to treat leukemia and his blood donor possessed a rare genetic mutation that provides natural resistance to HIV. Doctors declared him "cured" soon after.

Brown addressed the media in the U.S. for the first time Tuesday during the XIX International AIDS Conference in Washington, D.C.

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