世界卫生组织在刚果（金）启动埃博拉疫苗试验
WHO starts Ebola vaccine trial in DR Congo
According to Al Jazeera, a clinical trial has begun.
The trial will test the safety and efficacy of multiple vaccines.
WHO starts Ebola vaccine trial in DR Congo
According to Al Jazeera, a clinical trial has begun.
The trial will test the safety and efficacy of multiple vaccines.