The Girl With Two Immune Systems

The girl with two immune systems 🤯

In 2008, 9 year old Demi-Lee Brennan received a liver transplant. 9 months later her blood type completely changed. She was becoming her donor.

Her body was replacing her entire blood cell system with her donor’s.every This is the only known case of complete hematopoietic chimerism and it saved her life. It’s also the only known case of operational tolerance: the ability to receive a transplant without immunosuppressive drugs - a method transplant doctors h