【埃默里大学医学院执行副院长Carlos del Rio：美国现在必须全国性封锁，并进行大规模测试】Executive Associate Dean of Emory University School of Medicine Prof. Carlos del Rio: "We have to have now a national lockdown ... It's going to be really critical that we start testing massively right now.” http://t.cn/A6z0gAJd