immunodeficiency disease

例句：

1. 1. The child has a rare genetic condition that causes him to have an increased risk of developing certain diseases.
   这个孩子患有一种罕见的遗传病，这使他患上某些疾病的风险增加。
2. 2.This immunodeficiency disease is caused by a virus, and it can be life-threatening if left untreated.
   这种免疫缺陷病是由病毒引起的，如果不治疗，可能会危及生命。
3. 3. Researchers are trying to develop treatments for this immunodeficiency disease, which affects millions of people worldwide.
   研究人员正在尝试开发治疗这种免疫缺陷病的治疗方法，这种疾病影响全球数百万人。