US intelligence agencies have failed to reach a conclusion on whether Covid-19 first spread to humans through animals or because of an accident at China’s Wuhan Institute of Virology, as the debate over the pandemic’s origins continues to rage.
美国情报机构未能就新型冠状病毒肺炎(COVID-19,即2019冠状病毒病)最初是通过动物传播给人类、还是缘自manbetx3.0 武汉病毒研究所(Wuhan Institute of Virology)的一起事故得出结论。关于这场大流行起源的激烈争论仍在持续。
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