March 31, China— World Health Organization New Coronavirus Traceability Joint Research Chinese Expert Team Leader Liang Wannian in China—WHO Span8span New Coronavirus Chinese Expert Group Traceability Joint Research At the press conference, the joint research work on the traceability of the new coronavirus was introduced.
Liang Wannian introduced that the joint expert group conducted a scientific evaluation of the possibility of four introduction pathways of the new coronavirus from natural hosts through cold chain food, direct transmission, intermediate host , and laboratory transmission. It is divided into five levels: “extremely impossible”, “impossible”, “possible”, “relatively possible”, and “very likely”). The direct overflow of zoonotic diseases is regarded as a possible to more likely way; Host introduction is regarded as a more likely to very possible way; introduction of products through the cold chain food chain is regarded as a possible way; introduction through laboratory accidents is regarded as an extremely unlikely way.
Liang Wannian said that the joint traceability expert group has reached a consensus that these assumptions have no geographical restrictions from a scientific point of view. The expert group has been adhering to the concept of openness from the beginning. Because of the introduction of viruses, viruses have been introduced from animals to people. When it comes to the outbreak of the South China seafood market, it may have taken a long time, or it may have been a long-distance movement, including cross-border activities. Therefore, we need to have a broader view, not limited to a certain place, but to focus on all parts of the world, and gather all kinds of information collected from various fields and channels around the world to help us better understand the virus and the outbreak of Wuhan. Before, what happened.
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