自身接种

例句：

1. 1.The doctors will vaccinate the children against measles.
   医生们将给孩子们接种麻疹疫苗。
2. 2. We need to vaccinate our pets to prevent them from getting diseases.
   我们需要给我们的宠物接种疫苗，以防止它们得病。
3. 3. Vaccination is an important measure to protect public health.
   接种疫苗是保护公共卫生的重要措施。