Despite efforts by some governments to politicize studies into the coronavirus' origins, the scientific community continues to pursue relevant research. In July, China submitted to the World Health Organization its proposal for the Phase 2 study. CGTN's reporter Zhou Jiaixin sat down with epidemiologist Yang Yungui, one of the group leaders involved in the WHO-China joint mission in Wuhan earlier in January, for an exclusive interview to understand the process and concerns from the scientific community. Professor Yang, also the foreign member of the Academia Europaea, also helped us find out if criticism over China's scientific cooperation with WHO was justified or not.