vaccinization

例句：

1. 1. Vaccination is the process of introducing a weakened or dead virus into the body to stimulate an immune response.
   疫苗接种是向身体引入弱化或死亡的病毒以刺激免疫反应的过程。
2. 2. The government has been promoting immunization as a way to prevent the spread of diseases.
   政府一直推广免疫接种作为一种预防疾病传播的方法。
3. 3. The vaccine was developed by scientists who worked tirelessly for months to create a safe and effective treatment.
   该疫苗是由科学家们经过不懈努力数月研发出的一种安全有效的治疗方式。