"This is a unique position to be in, a unique and very humbling position. I want to be an ambassador of hope."

Said Adam Castillejo, quoted in "The ‘London Patient,’ Cured of H.I.V., Reveals His Identity" (DNYUZ).

Last March, scientists announced that Mr. Castillejo, then identified only as the “London Patient,” had been cured of H.I.V. after receiving a bone-marrow transplant for his lymphoma. The donor carried a mutation that impeded the ability of H.I.V. to enter cells, so the transplant essentially replaced Mr. Castillejo’s immune system with one resistant to the virus. The approach, though effective in his case, was intended to cure his cancer and is not a practical option for the widespread curing of H.I.V. because of the risks involved.