In the study of the South China Seafood Market, after genome sequencing, it was found that the sequence of the virus was almost 100% identical to that of the patient at that time. (Photo/Dazhi/Associated Press)
The Information Office of the State Council of the People’s Republic of China held a press conference on the research on the origin of the new crown on the 8th. At the press conference, Tong Yigang, Dean and Professor of the School of Life Sciences, Beijing University of Chemical Technology, said that in the South China seafood market research, genome sequencing found that the sequence of the virus was almost 100% identical to that of the patient at that time, which means that the new coronavirus is likely to have originated from humans. .
according to“Sina News”Citing a report from Beijing Daily, Tong Yigang pointed out that from January to March 2020, researchers from the China Centers for Disease Control and Prevention conducted some new coronavirus tests and massive Genome sequencing, etc.
These included more than 400 animal samples collected from the market, all of which tested negative. Of the more than 900 market environment samples, 73 were positive. During the testing process, the researchers also isolated three strains of the virus in environmental samples. After genome sequencing, it was found that the sequence of the virus was almost 100% identical to that of the patient at that time, which also suggested that the virus may have originated from humans.
Tong Yigang added: “During the analysis process, some host information carried in the environmental samples showed that it is mainly human hosts, including genes from pigs, cows, chickens, ducks, and some cold chain products, and even mice and cats. Animal genetic judgment. These all suggest that the new coronavirus is likely to be something contaminated by humans. These data also further confirm the conclusions made by the joint team of China and WHO in the first stage.”