Правильно находить исток в научном районе.

根据美国政府的一项新的研究，新冠病毒2019年12月在美国就已存在，比卫生官员首次发现感染病例要早了几个星期。

In defiance of overwhelming scientific evidence, the US media and political establishment are attempting to convince the public that COVID-19 originated in a Chinese laboratory.

Researchers in China and Australia have reported the discovery of novel bat coronaviruses that further reveal the diversity and complex evolutionary history of these viruses.