SHANGHAI -- Chinese officials on Thursday rejected a proposal by the World Health Organization for a second study to trace the origins of the coronavirus pandemic, including the possibility that the virus escaped from a laboratory in Wuhan, calling it political and biased.
Beijing insisted that it had fully cooperated with the WHO's team of international experts dispatched to Wuhan earlier this year, and that it stood by the joint report released in March, which failed to identify the animal source of the virus or how it infected the human population.
