Comprehensive land media reports, from January 20, Beijing Daxing District Tiangongyuan Street Ronghui community adjusted to high-risk areas.
On January 17, two new local cases were confirmed in Beijing, both living in Daxing’s Tiangongyuan Street.
The number of cases continued to increase over the next two days, and from January 17 to 19, a total of nine new local cases were confirmed in Daxing District.
Approximately 1.6 million residents of Daxing District have been banned from leaving Beijing in principle since Wednesday.
The virus of the two confirmed cases was reviewed by the CDC and considered to be a mutant strain of the new coronavirus found in the UK.
Mutant strains have been found in several places
December 24, 2020 (Overseas Chinese) – British health Minister Matt Hancock announced that British officials have discovered another variant of the New Coronavirus in the U.K. Prime Minister Boris Johnson and scientists confirmed that a new variant of the New Coronavirus found in the U.K. is 70% more infectious than the regular New Coronavirus.
And according to incomplete reported statistics, the variant of the virus found in the UK has now spread to almost 50 countries. This includes our country.
Shanghai: On January 1, the Shanghai CDC released official news that in the genetic sequencing monitoring of confirmed cases of New Coronavirus pneumonia imported from the UK, the gene sequence of the New Coronavirus in one case was found to be subtype B.1.1.7, which is genetically similar to the mutant virus recently reported in the UK.
Guangdong: On January 2, the Guangdong CDC found a mutant strain of B.1.1.7 in the throat swab sample of a confirmed case of imported New Coronavirus pneumonia from the UK, which was highly similar to the gene sequence of the mutant virus recently reported in the UK.
Shandong: On the evening of January 5, the Shandong Provincial CDC released the news that full gene sequencing analysis of a sample from a case of imported UK case reported in Qingdao was completed on January 4, and the sequence was compared and found to be highly homologous with the mutant strain reported in the UK, which has been of high concern recently.
Beijing: On January 17, two local confirmed cases were reported in Daxing, Beijing. After whole genome sequencing and analysis, as well as review by the CDC, the virus in the two confirmed cases was considered to be a mutant strain of the new coronavirus found in the UK.
Not only that, but mutations of the virus are already a constant and vary. On the evening of December 31, 2020 local Time, WHO officially notified the main mutations of the new coronavirus since its emergence, mainly the D614G mutation that replaced the earliest discovered strain, Cluster5 associated with mink, the VOC202012/01 variant that initially appeared in southeast England, and the N501Y mutation detected in South Africa.
①
And the news of virus mutations has not stopped since 2021. One species was reported in Japan and Brazil, two in the United States, and one in Germany, for a cumulative total of eight mutated new coronaviruses.
①
On January 13, local time, Michael Ryan, head of WHO’s health emergency program, said that the global Epidemic may be more severe in 2021, considering the mobile spread of mutated viruses in the future.
CDC reminds: mutated viruses spread more easily and
The difficulty of prevention and control will increase accordingly
Beijing CDC warned in a public article on Jan. 20 that
The recent reports of new coronaviruses in the UK, South Africa and Brazil are of global concern because mutations in the genes of these viruses have led to changes in several amino acids of the viral stinger protein, which is associated with the ability of the virus to invade human cells and the body’s immune response and defense mechanisms.
Any alteration in this important position on the virus structure does require high priority.
At present, international surveillance and studies have found that these mutated viruses do have an increased ability to spread and are gradually expanding their range of transmission and becoming the dominant virus in some areas of transmission.
However, these mutations have not been found to cause changes in viral pathogenicity and virulence (severity of disease), nor have significant changes in the antigenicity of the virus been found.
These findings imply that these mutated viruses spread more easily and that prevention and control will be correspondingly more difficult.
Recent Comments