变异病毒更有可能在人与人之间传播

变异病毒更有可能在人与人之间传播

On the 22nd local time, 世界卫生组织发布有关英国变异新冠病毒的信息, 说变异病毒更有可能在人与人之间传播.

传染性增加 40%-70%! The mutated new coronavirus may have spread in the United States
The official notification issued by the WHO pointed out that preliminary analysis shows that this new coronavirus variant is more likely to spread from person to person, with an estimated increase of 40% 到 70% in infectivity, and an increase of 0.4 到 1.5 到 1.7 in the transmission index. As of December 13, 总共 1,108 cases of the mutant virus have been detected in the UK.

WHO: Related cases have appeared in many countries

玛丽范科霍夫, the technical director of WHO’s health emergency project, said recently that countries have now launched virus sequencing to find cases of the mutated new coronavirus found in the UK. Such cases have already appeared in some countries, including Australia, Iceland, 意大利, the Netherlands and Denmark.

WHO recommends that countries increase routine sequencing of the new coronavirus

WHO recommends further epidemiological and virological research to understand the changes in infectivity and pathogenicity of mutant viruses.

The WHO recommends that all countries increase routine sequencing of the new coronavirus when possible, and share viral genetic sequence data, especially to report whether the same mutant virus has been found. All countries must assess the level of local virus transmission and take appropriate preventive and control measures.

What are the new features of the mutant new coronavirus?

Virus mutation is a common phenomenon that occurs during virus replication. As an RNA virus, the new coronavirus will mutate more frequently. In the process of virus mutation, the infectivity and toxicity will change. After some viruses mutate, their infectivity and toxicity will increase.
According to the British Broadcasting Corporation, the new strain of the new coronavirus discovered in the UK was named “VUI-202012/01”. Its gene has been mutated 23 次. Many changes are related to the vital spike protein. It depends on this part to combine with human cells.

Susan Hopkins, a consultant physician to the Public Health Service of England, said that according to estimates, 62% of confirmed cases of new coronary pneumonia in London have been infected with this new strain. 然而, it is observed that at present, the new strain has not shown increased toxicity, and the infection hospitalization rate has not changed significantly.

British health officials said that new strains cannot be ignored, because the increased infectivity, the faster the spread of the virus, and the surge in cases will overwhelm the medical system.

我们. Centers for Disease Control: Mutated new coronavirus may have spread in the U.S.

最近, the mutated new coronavirus that emerged in the UK has attracted the attention of many countries. 22日, 美国. Centers for Disease Control and Prevention stated that in view of the continuous exchange of people between the United States and Britain and the highly contagious nature of the mutant virus, the possibility of the mutant new coronavirus being imported into the United States is very high and it is likely to have spread in the United States. 然而, due to the small number of virus sequencing currently being carried out in the United States, this mutant virus has not been discovered yet.

Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said in an interview that he would not be surprised if the mutated new coronavirus appeared in the United States.
The total number of confirmed cases of new coronary pneumonia in the UK exceeds 2.07 百万

Data show that since December, the number of newly confirmed cases of new coronary pneumonia in the UK has surged again, with a total of more than 2.07 百万确诊病例. The average number of new cases in a single day in the past week was close to 30,000.

From the 20th, the level of prevention and control of the new crown epidemic in London, southeast and east of England has been upgraded from the third level to the newly added level 4 for a period of two weeks. Under the four-level prevention and control level, people should stay at home as much as possible except for a few cases such as purchasing daily necessities.

Out of fear of the spread of the mutated new crown virus, 迄今为止, 多于 40 countries and regions have suspended flights from the United Kingdom, and the duration of the ban varies.

These countries include Germany, 意大利, and the Netherlands in Europe; Turkey and Iran in the Middle East; Peru and Argentina in Latin America. 此外, 俄罗斯, Canada, India and other countries have also adopted similar bans.

First confirmed case of new coronary pneumonia in Antarctica

On the 21st local time, the Chilean Army confirmed that a cluster of new coronary pneumonia infections occurred at a military base in Antarctica, 和总共 36 people have been diagnosed. All confirmed persons have been evacuated and isolated and are in good physical condition without serious symptoms.

据当地媒体报道, the epidemic may be related to a previous visit by a Chilean naval ship. When the warship received a nucleic acid test for the new crown virus after returning from its logistics support mission, it was found that many people were diagnosed with infection. Before the warship set sail for Antarctica, all crew members tested negative for the new crown virus.