Tatyana Thompson, a mother who was diagnosed with sickle cell disease at two months old, has been cured of the condition after undergoing an experimental treatment at Johns Hopkins University. The genetic blood disorder causes red blood cells to become misshapen, causing intense pain and eventually causing organ damage. Thompson, who lived with moderate pain throughout her life, received hydroxyurea, a form of chemotherapy that makes the red blood cell more flexible and reduces the need for blood transfusions. She was able to go home the same day after waking up with a pain level of zero. The discovery of this treatment led to a 94% disease-free survival rate.