美国下水道系统新冠病毒跃升，新一轮爆发恐怕又来了
- 主题发起人 飞来客
- 开始时间
US experiments ‘may have contributed to emergence of Covid’
US experiments may have contributed to the emergence of Covid-19, leading economist Prof Jeffrey Sachs has warned, as he called for an independent inquiry into whether the virus leaked from a lab.
