免疫者

例句：

1. 1.The immunizer developed a new vaccine to fight the virus.
   疫苗制造者开发了一种新疫苗来对抗这种病毒。
2. 2. The immunizer was awarded the Nobel Prize for his work.
   这位疫苗制造者因其工作获得了诺贝尔奖。
3. 3. The immunizer is responsible for ensuring the safety of the vaccines.
   这位疫苗制造者负责确保疫苗的安全性。