Charla Nash was mauled in Stamford, Conn., by Travis, a chimp who belonged to her friend Sandra Herold, according to multiple media reports.
Nash lost her nose, ears, lips, hands and eyesight in the attack.
Travis, a 200-pound primate who had appeared in television commercials, had to be shot dead when he went after police officers responding to the attack scene, media reports said.
According to The New York Times, Nash had recently been participating in a study intended to help wounded soldiers and others who have been maimed.
Doctors at Brigham and Women's Hospital in Boston were weaning Nash off anti-rejection drugs as part of the experiment, but tests showed that her immune system was attacking the transplanted tissue, The New York Times reported.
Doctors said Nash, who had also undergone a failed hand transplant, was not in danger of losing her face, but they were removing her from the research study, The New York Times story said.
To read The New York Times article, click here.
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