“China has actively supported and participated in global, science-based investigations into the origins of the novel coronavirus in the spirit of science, openness and transparency,“ Guo added.

　　“The US should stop politicizing and weaponizing origin tracing at once, stop scapegoating other countries, and stop playing deaf to the questions concerning its role in the pandemic,“ he said, adding that the US still owes the international community a serious response to those legitimate concerns.

　　limenghan@chinadaily.com.cn