Recently, Russian scholars found 18 kinds of mutated new coronavirus in a woman with low immunity, some of which are the same as the new mutated virus in Britain, and two of which are identical with the mutated new coronavirus carried by Danish minks. The 47 year old woman has lymphoma. In April 2020, the woman was infected with new coronavirus during a chemotherapy. Since then, she has carried out regular nucleic acid tests, and until September 9, the test results have been positive.
Konstantin krotowski, Professor of genomics and bioinformatics at Siberian Federal University, pointed out that this research work confirmed for the first time the fact that “the long-term existence of new coronavirus in an organism will lead to a large number of mutations”.
Recently, the news about the mutation of new coronavirus is continuous. It is particularly noteworthy that, in addition to the mutated new coronavirus previously found in the UK, Japan recently announced that a new mutated new coronavirus has been detected in four passengers flying from Brazil to Japan. Scientists believe that this may be a new variant of the new coronavirus produced in the Amazon region of Brazil.
Novel coronavirus pneumonia was detected in 10 Japanese and Chinese women’s health workers, according to CCTV News quoted Japanese media. On the date of the announcement, on the day of the 4 day, the Ministry of health and labour of Japan announced that 4 new Brazil and Japan were identified as new variants of new crown virus.
Researchers from Brazil’s Oswaldo Cruz foundation pointed out on the 12th that the new coronavirus carried by Brazilian passengers found at the Japanese airport may be a new variant of the new coronavirus produced in the Brazilian Amazon region.
Scientists said that the novel coronavirus pneumonia infected Brazil passengers were uploaded to the international database recently, and the researchers in Brazil analyzed and compared them. The B.1.1.28 mutation was found in the virus samples carried by the passengers in Brazil, which is the viral gene sequence collected from Brazil, especially in the Amazon region between April 2020 and November. The data are consistent. Scientists believe that this new variant of the virus combines more closely with cells and is more infectious.
In addition, researchers from the University of Sao Paulo conducted a similar gene comparative analysis at the same time, and reached the same conclusion as Oswaldo cruise foundation.
More infectious! Mutating the new coronavirus will be a new challenge in 2021, who experts say
Speaking at an online press conference in Copenhagen on the 7th, Kluger, director of the European Regional Office of the World Health Organization, said that in 2021, the world has new tools such as vaccines to deal with the new epidemic situation, but at the same time, it is also facing new challenges such as virus mutation.
Kluger said that 22 of the 53 countries under the responsibility of the WHO Regional Office for Europe have found new coronavirus strains with mutations. The mutated virus was more infectious and the severity of the disease remained unchanged. If we do not strengthen the control to slow down its spread, it will have a greater impact on the current medical system which has been under pressure.
He called on all countries to be vigilant, investigate and track abnormal rapid transmission events, unexpected disease manifestations or severe cases, increase systematic sequencing of mutated viruses, use sequencing data to promote early prevention, and share more data.
According to the WHO Regional Office for Europe, more than 230 million people in Europe are currently living in the national blockade, and some countries will announce the blockade measures in the next few weeks. More than a quarter of European countries have a very high rate of new crown infection, and the health care system is under great pressure.
Kluger called on all countries to continue to insist on wearing masks, limiting the number of people at social gatherings, keeping social distance and washing hands, supplemented by appropriate anti epidemic measures such as virus detection and tracking.
Wu Zunyou, chief epidemiologist of the Chinese Center for Disease Control and prevention, is leading the team to trace the origin of the new coronavirus in Beijing. Wu Zunyou said that although the first case of Beijing was reported on June 11, the infection time of the case should be at the end of May and the beginning of June. That is to say, the pollution in the new place should occur around the middle of May, whether it is brought in by goods or personnel.
On February 26, according to Hong Kong media, Xu Zhian and his fitness coach and friends recently made an appointment for afternoon tea. On the same day, Xu Zhian wore a white coat and dark sweatpants. He looked a little fatter, but he had a good spirit.
When the reporter asked if he had seen Huang Xinying and heard about her association with Nihong, Xu Zhian immediately shook his head and left faster.