Additional facts
Recently, increasing reports suggest that up to 5% of patients with beta-thalassemias produce fetal hemoglobin (HbF), and use of hydroxyurea also has a tendency to increase the production of HbF, by as yet unexplained mechanisms.[citation needed]
Giving a happy ending to a poignant family tale and raising fresh hope of leveraging stem cell therapy, a group of doctors and specialists in Chennai and Coimbatore have registered the first successful treatment of thalassaemia in a child using a sibling's umbilical cord blood.