vaccines
vaccines 双语例句
Existing flu vaccines all work by mimicking natural infections . 现有的流感疫苗均通过模拟自然感染而起作用。 Can animal models predict protection provided by meningococcal vaccines ? 动物模型能够预测流脑菌苗的保护作用? Because vaccines don 't always take . 因为疫苗并不总是起作用。 How are flu vaccines made ? 流感疫苗是怎么制备的？ Both the combined mmr vaccine and the single vaccines work well . mmr联合疫苗和单一疫苗两者都有良好效果。