pro-antigen

例句：

1. 1. The pro-antigen test is used to detect the presence of a specific disease.
   前体抗原测试用于检测特定疾病的存在。
2. 2.The pro-antigen vaccine was developed to protect against the virus.
   前体抗原疫苗被开发出来以保护免受该病毒的侵害。
3. 3. The pro-antigen can trigger an immune response, leading to the development of antibodies.
   前体抗原可以引发免疫反应，导致抗体的产生。