The history of infectious diseases tells us that it generally takes a long time to identify the origin of a new infectious disease and have the findings accepted worldwide, said Liang Wannian.

According to him, the team leader is from the Chinese side of the WHO-China team, studying the origins of COVID-19.

Speaking at a press briefing from the Chinese experts participating in the joint study, Liang noted that the place a virus is first reported is not necessarily the originating point of the virus. (NAN)