They are also genetically engineering stem cells to correct genetic disorders such as severe combined immunodeficiency 同时也有人以基因工程改良干细胞，以矫正例如重症联合免疫缺陷的遗传缺失。
2.
A second 10 - month - old child with scid also had gene therapy at great ormond street four months ago . the patient is doing even better than rhys at a comparable stage 4个月前，第二名重症联合免疫缺陷患儿（一个10个月大的孩子）也在大奥尔蒙德街医院接受基因治疗。在相同的阶段比较两个患儿的病情，这个孩子甚至比里斯恢复得更好。
