易混淆的单词： Adrenoleukodystrophy

The treatment , in which the virus delivered a therapeutic gene , marks the first time gene therapy has been successfully used against x-linked adrenoleukodystrophy ( ald ) -- a disorder that is always fatal if untreated .

这次治疗中应用的病毒携带的治疗基因，使基因疗法首次成功地应用于抗x-连锁肾上腺脑白质障碍（ald），种如不治疗总是死亡的疾病。