vaccinid

例句：

1. 1. The vaccine is effective in preventing the disease.
   这种疫苗能有效预防这种疾病。
2. 2. Vaccination is a crucial step in controlling the spread of infectious diseases.
   疫苗接种是控制传染病传播的关键步骤。
3. 3.The government has launched a new campaign to encourage more people to get vaccinated.
   政府启动了一项新的活动，鼓励更多人接种疫苗。