Girl Spontaneously Switches Blood Type After Liver Transplant

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A young girl spontaneously switched blood types and took on her donor's immune system following a liver transplant, doctors told French news agency AFP Thursday.

It was the first time doctors had seen such an occurrence, according to a report in this week's New England Journal of Medicine.

Click here to view the full AFP report.

Demi-Lee Brennan of Australia was seriously ill with liver failure when she received the transplant at Sydney Hospital.

Nine months later, doctors discovered the girl, who was age 9 at the time, had changed blood types and switched immune systems after stem cells from the new liver migrated to her bone marrow.

Michael Stormon, a hepatologist treating her, said the girl is now age 15 and doing well.