Updated 05 May 2016

Chimpanzee victim's immune system rejects face transplant

A woman who received an experimental face transplant five years ago is reportedly back in hospital, after her immune system started rejecting the transplant.

Charla Nash who underwent a pioneering face transplant after being mauled by a chimpanzee has been taken back into hospital after her immune system began rejecting the tissue.

Read: Watch: Facial surgery gives baby new hope

She had been taking part in a military-funded experiment in which doctors at Boston's Brigham and Women's Hospital tried to wean her off the anti-rejection drugs she had been taking since the 2011 operation.

Nash tells The Associated Press she would appreciate any prayers and is confident her participation in the experiment will provide information to help treat disfigured soldiers returning from war.

Read more:

Two girls back in CT for second round of facial reconstructive surgery

Face transplant patient Pat Hardison sees himself for the first time

Cleveland Clinic does second face transplant