免疫原的

例句：

1. 1. The vaccine is designed to stimulate the immune system's response to the virus.
   疫苗旨在刺激免疫系统对病毒的反应。
2. 2. The study focused on the role of immunogens in disease development.
   该研究专注于免疫原在疾病发展中的作用。
3. 3. The researcher discovered that some immunogens could trigger an allergic reaction.
   研究者发现某些免疫原可以引发过敏反应。