该小组还将通过实验验证是否猪身上的内生性逆转滤过性病毒(一种致癌病毒)会在移植培育过程中感染到人身上。

The team will also conduct tests to investigate whether so-called porcine endogenous retroviruses (PERVS) from the pigs could infect human cells in culture.

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科学家还试图在动物身上栽培人体器官，寄望有一天可能将之移植回人类身体_例如科学家在老鼠背上培育人的耳朵。

Scientists also have tried to grow human organs in animals that could one day be transplanted back into humans _ like a mouse onto whose back scientists grew a human ear.

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这项批准标志着从胚胎中提取并培育人类干细胞将首次被移植入患者。

The approval marks the first time human stem cells, extracted and grown from embryos, will be transplanted into patients.

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