China hopes that the World Health Organization (WHO) will genuinely treat the novel coronavirus origin-tracing work as a scientific issue, get rid of political interference, and actively and prudently promote the tracing work to be carried out continuously in multiple countries and regions around the globe, said a senior official of the National Health Commission (NHC) on Thursday.

What has been carried out in the first stage of origin tracing, especially those that have reached a clear conclusion, should not be repeated, said Zeng Yixin, deputy head of the NHC, at a press conference on the novel coronavirus origin-tracing work held by the State Council Information Office in Beijing.

What should be carried out is the origin tracing of early cases, molecular epidemiology and intermediary hosts in multiple countries and regions on the basis of extensive consultations among WHO member states, Zeng said.

According to an agreement between China and the WHO in July 2020, a WHO team comprising international experts arrived in Wuhan on Jan. 14. They formed a joint body with Chinese experts for the Chinese part of the global study on the origins of the novel coronavirus, he said.

The team studied a massive amount of epidemic-related data and visited nine facilities, including Wuhan Jinyintan Hospital, Huanan seafood market, and the Wuhan Institute of Virology, under the Chinese Academy of Sciences. The team conducted extensive exchanges with local medical workers, lab researchers, scientists, and market managers. They also interviewed social workers, community workers, residents, and patients who had recovered, said Zeng.