immunifaction

例句：

1. 1. The patient's immune system was compromised by the infection.
   患者的免疫系统因感染而受损。
2. 2. The researchers discovered a new mechanism that could enhance the immune system's response to infections.
   研究人员发现了一种新的机制，可以增强免疫系统对感染的反应。
3. 3. The lack of vitamin C can lead to immunosuppression, which can increase the risk of serious illnesses.
   维生素C的缺乏可能导致免疫抑制，这会增加严重疾病的发病风险。