预防接种

例句：

1. 1.Vaccination is a crucial step in preventing the spread of diseases.
   接种疫苗是预防疾病传播的关键步骤。
2. 2. The government has been promoting vaccination campaigns to protect its citizens.
   政府一直在推广疫苗接种活动，以保护其公民。
3. 3.Many people choose to get vaccinated against COVID-19 because it provides significant protection against the virus.
   许多人选择接种COVID-19疫苗，因为它能提供对病毒的显著防护。