我们可以找到抑制疾病突然发作的方法，而对副作用却束手无策。
We could find ways to shut down seizures but the side effects might be intolerable.
在电击治疗中，医生给患者使用肌肉松弛剂和麻醉剂，并让电流通过患者大脑的部分区域，电流可引发疾病短时间突然发作，有助于治疗抑郁症。
In ECT treatment, patients get a muscle relaxant and an anesthetic and an electrical current is passed to part of their brains, triggering a brief seizure that can help treat the depression.
艾滋病的出现表明了这样一种前景，即传染病的威胁有可能并不是来自于以前发生过的疾病的又一次发作，而是来自于新病种或者至少是未曾被发现的病种的突然出现。
AIDS raised the prospect that the threat from infectious disease might come not from the reappearance of old diseases, but from the sudden emergence of new ones, or at least unrecognized ones.
艾滋病的出现表明了这样一种前景，即传染病的威胁有可能并不是来自于以前发生过的疾病的又一次发作，而是来自于新病种或者至少是未曾被发现的病种的突然出现。
AIDS raised the prospect that the threat from infectious disease might come not from the reappearance of old diseases, but from the sudden emergence of new ones, or at least unrecognized ones.
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