Haemophilia B (also spelled Hemophilia B or Hæmophilia B) is a blood clotting disorder caused by a mutation of the Factor IX gene, leading to a deficiency of Factor IX. It is the least common form of haemophilia, rarer than haemophilia A. It is sometimes called Christmas disease after Stephen Christmas, the first patient described with this disease. In addition, the first report of its identification was published in the Christmas edition of the British Medical Journal.
New hemophilia b study findings have been reported by researchers at Medical College of Wisconsin, Department of Pediatrics.
Sep 22, 2010; A report, 'Factor IX ectopically expressed in platelets can be stored in alpha-granules and corrects the phenotype of hemophilia...