A Vietnamese girl adopted by a Swiss family underwent a stem cell transplant last Friday, months after she was diagnosed with acute lymphoblastic leukemia.

Joon Gremillet, 18, is under special care at the Geneva General Hospital with visits restricted to protect her from infections, given that her immune system drops close to zero, according to a post on the blog site Help Joon, which was opened to look for a matching donor by her adoptive father Patrick Gremillet, a senior program coordinator at the United Nations Development Program.

Patrick received Joon from a maternity hospital in Hai Phong in northern Vietnam and she has grown up with the family, traveling through Laos, Thailand, US, Austria and France.

Joon, who started her university studies last year in Geneva, was diagnosed with leukemia last May.

She was hospitalized immediately and received chemotherapy before the search began for a bone marrow donor that considerably increases chances of survival.

The father said a donor was a stressful issue as Joon was adopted and there was little chance of finding a matching donor in her current community.

He said there are also few Asians, and Vietnamese in particular, who are enrolled in the international stem cell donor registry.

Fortunately, a compatible donor was found in November, although details are being kept confidential.

Patrick said the donors stem cells were infused into his daughter in a process that lasted nearly two hours.

He said Joon will have to wait for between ten to 30 days before the transplanted cells begin to circulate in her bones and gradually resume production of bone marrow and blood cells. If things go well, she can regain immunity after three months.

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