A London man is believed to be the second person ever to be cured of the HIV virus after he received a bone-marrow transplant, his doctors reported Monday.

The man, who was not identified, was diagnosed with HIV — the virus that causes AIDS — in 2003, according to the findings published by the journal Nature.

He later developed cancer and agreed to undergo a bone-marrow transplant for treatment.

Doctors found a donor with a gene-mutation that is naturally resistant to the HIV virus, according to the findings.

The patient received the bone-marrow transplant in May 2016.

He received other treatments as well, but by September 2017, he stopped taking anti-HIV drugs and has remained virus free for more than a year, the New York Times reported.

His case is similar to the first man cured of HIV in 2007.

Timothy Ray Brown, 52, formerly referred to as the “Berlin patient,” also underwent a bone-marrow transplant to treat his Leukemia.

Scientists have tried, and repeatedly failed, to duplicate the success they had in curing Brown.