n. 疫苗,痘苗
adj. 痘苗的,疫苗的
There is no vaccine against HIV infection.
现在还没有防艾滋病病毒传染的疫苗。
At present, no widely approved vaccine exists for malaria.
目前没有被广泛认可的疟疾疫苗。
Researchers around the world are collaborating to develop a new vaccine.
世界各地的研究人员正在合作培育一种新的疫苗。
The search for a new vaccine will take priority over all other medical research.
研制新的疫苗将排在其他一切医学研究之前。
When he tested an early vaccine on himself, some described the act as foolhardy.
当他在自己身上试验还处于初级阶段的疫苗时,有些人说他的行为是莽撞的。