pertussis vaccine

例句：

1. 1. The doctor recommended that she getthe pertussis vaccine to prevent herfrom getting sick.
   医生建议她接种百日咳疫苗，以防止生病。
2. 2. Children are usuallyvaccinated against pertussis before they startschool.
   儿童通常在上学前接种百日咳疫苗。
3. 3. Vaccination is an importantmeasure to prevent pertussis and otherdiseases.
   疫苗接种是预防百日咳和其他疾病的重要措施。