I didn't see this posted anywhere, and it's, well...
Teen's blood type switch stuns experts | The Courier-Mail
Kate Sikora
January 25, 2008 11:00pm
TEENAGER Demi-Lee Brennan has been dubbed the "one-in-six-billion miracle girl" after her body switched blood types to take on the immune system of her organ donor. Her ability to accept a new liver and then miraculously produce new blood cells has left doctors mystified.
The rare phenomenon now means Demi-Lee, 15, will not have to take a cocktail of anti-rejection drugs for the rest of her life. It also gives hope to the 1800 gravely ill Australians awaiting a transplant.