Japanese research institutions clarified: Japan’s epidemic strain only a small number of base variation.

In response to Japan’s Yomiuri Shimbun newspaper said that since June spread in Japan, the mutated new coronavirus has a new gene sequence report, Japan’s National Institute of Infection experts in an e-mail interview with Xinhua News Agency on the 9th, said that this report is false positive, in fact, Japan’s current epidemic of the new coronavirus strain has only a small number of base variation.

Japanese research institutions clarified: Japan's epidemic strain only a small number of base variation.

Japan’s Yomiuri Shimbun reported on the 8th, Japan’s National Institute of Infections recently found that since March this year, the spread of the epidemic in Japan, mainly caused by the European gene sequence of the new coronavirus, but in late May has temporarily subsided. The new coronavirus, which has spread in Japan since June, is a mutated new coronavirus with a new genetic sequence. At present, the large number of new crown confirmed cases in Japan are mostly infected with this variant of the new crown virus.

In response, Kuroda, director of the Pathogen Genome Analysis Research Center at Japan’s National Institute of Infectious Diseases, told Xinhua that the reports were false positives and that he had received numerous contacts for confirmation of the details of the study. From the original report sent by Kuroda to Xinhua News Agency reporters, it can be seen that the current epidemic in Japan’s new coronavirus strain is only in the previous European gene sequence on the basis of the new coronavirus, further six base mutations occurred. The strain, which has a small base mutation, is likely to spread from Tokyo to Japan throughout late June.

As of July 16, the researchers analyzed the viral genome sequences of more than 3,600 new coronavirus-infected people in Japan and 67 people who entered the country by air, and compared the viral genome sequences of about 46,000 new coronavirus-infected people worldwide, the report said.

Globally, the new coronavirus genome has produced an average of about 15 base variants at random between late 2019 and July this year, the study showed.