Health and Healthcare Systems
新冠肺炎疫情：如果疫苗无效怎么办？
随着冠状病毒继续在世界范围内传播，数十亿人对正在研发的疫苗寄予厚望，希望能够通过疫苗而终结大流行。
随着冠状病毒继续在世界范围内传播，数十亿人对正在研发的疫苗寄予厚望，希望能够通过疫苗而终结大流行。
Two medical experts discuss the lack of contingency planning if a vaccine isn't found, and what alternatives the global community should consider.