Disease control： I hope to cover all possible countries and regions as far as possible in traceability research.

　　CCTV News:On the afternoon of April 8, the State Council held a press conference on the traceability research of COVID-19 in China.

　　At the press conference, a reporter asked: What kind of cooperation plan will China have with the international community in the future regarding the investigation and research on traceability? Are there any specific international cooperation arrangements or plans?

　　Zhou Lei, a researcher at China CDC, responded that Covid-19’s traceability is not a matter for one country, nor can it be accomplished independently by one country. It necessarily requires the joint efforts of the global scientific community. Therefore, it is imperative for the whole world to unite, especially for scientists to work together to carry out traceability, which is also necessary and what we have always advocated. We are adhering to an open, objective, scientific and open attitude to cooperate with WHO. We have also invited international experts many times. For example, since 2020, we have invited at least two international experts to China to carry out traceability research. I think this will not change in the future, which is certain.

　　In fact, just now, several of my colleagues have repeatedly mentioned that the first phase of our joint research cooperated with more than 10 international colleagues and top international experts selected by WHO to carry out joint research work, and formed a particularly detailed joint research report for joint release. This is an attitude in itself, and this is our research result. After that, we didn’t stop our research work, and our expectation and efforts to trace the source never stopped. A large number of research results and data we carried out in the later period were shared with our international counterparts in various forms without reservation. We published many scientific papers, shared our sequences and shared our data and information in multiple databases. In addition, we supported the decision of WHO to conduct global joint traceability. We sent experts to collect more data and information, and we have been doing what China can do. In fact, we very, very much hope that global traceability can really become a global traceability. We have repeatedly called for the location and angle of traceability research to cover all possible countries and regions as much as possible, and we should stop speculating and paying attention to Wuhan all the time. We have done a lot of work in this regard, and I have reiterated this many times. China’s attitude has never changed. Traceability research should be an international action. We also very much hope that WHO is an authoritative professional organization and international organization, which can really organize the global traceability work and organize all the elites in the international scientific community with a scientific, rigorous and fair attitude.Let us trace back to Covid-19 and get a convincing answer in the future.