Timothy Brown sounds like a pretty common name, so it might not mean much to you.
But one particular Timothy Brown is set to appear at the International AIDS conference in Washington tomorrow.
He's allegedly the only person ever cured of the HIV infection.
Brown also known as "the Berlin Patient" was HIV positive and fighting leukemia in 2007.
Doctors in Germany wiped out his immune system with chemotherapy and radiation.
Then, they gave him two rounds of stem-cell transplants.
German researchers say the donor had a rare, inherited gene mutation that makes stem cells naturally resistant to infection with HIV.
Scientists are hesitant to call this a cure for HIV.
They say Brown's situation was not typical, and treatment like his is not a practical option for most patients.
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