A man from Norway, referred to as the "Oslo patient," has likely been cured of HIV after receiving a stem cell transplant from his brother, who has a rare mutation that suppresses HIV infection. The 63-year-old man was first diagnosed with HIV in 2006 and successfully treated for it until 2017, when he began experiencing fatigue and decreased blood cell levels. He was diagnosed with myelodysplastic syndromes in January 2018, which inhibit production of cells. Despite conventional treatments, doctors found a suitable bone marrow donor for the transplant. The transplant took place in November 2020 and no intact HIV DNA was detected four years after the transplant, indicating the likelihood of a cure.