For example, in a gene therapy trial for X-SCID - or "bubble-boy" disease - inserting a gene in the wrong place triggered cancer in some of the recipients.

比如，在X光免疫缺陷和“泡泡男孩”疾病的基因疗法试验中，就因基因植入错误而引发了试验者的癌症。

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People with SCID -- also known as "bubble boy disease" -- cannot cope with infections and usually die in childhood.

MSN: European regulators back first gene therapy drug