The novel coronavirus pneumonia outbreak was held in Beijing on the afternoon of February 12th local time, held in the early hours of February 12th.
Peter Ben Ambarek, head of the WHO Expert Group, said that the international expert group’s visit to China had been successful in many aspects and had a better understanding of the situation at the time of the outbreak, including virus transmission, virus gene sequencing, and wildlife traceability. Ambarek stressed that “the covid-19 has not been deliberately used by the laboratory” and “no one has seen this virus before the outbreak.”
The laboratory did not deliberately use the covid-19.
Peter Ben ambarek pointed out that the WHO expert group went to the laboratories in Wuhan and discussed with the staff that there was no covid-19 in these laboratories at first, which is consistent with the statement of other laboratories around the world that the virus was not deliberately used in any laboratories studying coronavirus. Although the covid-19 “may exist in the samples that have not been treated,” from the understanding of all laboratories, “no one has seen this virus before the outbreak. Otherwise, the covid-19 has already appeared in the research papers” – if researchers find a new virus, they will publish it immediately, which is a common practice in the world.
Who expert group leader Peter Ben ambarek: before December 2019, there will be no large-scale epidemic in Wuhan and its surrounding areas, but the origin of the virus, animal hosts, and the route of transmission into the population in December are still unknown.
Who expert group member Marion Koopmans
Marion Koopmans, a member of the WHO Expert Group, said that more than 30000 animals of different species and locations had been tested and screened, and no potential host of the covid-19 has been found. At present, no intermediate host has been identified, but this traceability work provides clues for further research.
The panel also saw unpublished research results on bats, including attempts to culture covid-19 from them, but this culturing process was rarely successful. Besides, the virus found in the large-scale screening in this study is far away from the covid-19.
Tan Desai: virus traceability needs further analysis and research
Who director-general Tan Desai said that the international expert group on virus traceability had completed its trip to China, and thanks to all expert groups. At present, the expert group is preparing an overview of the report, which is expected to be released next week, and the final report will be released in the next few weeks.
Who director-general Tan Desai (photo source: Chen Junxia, Xinhua News Agency)
Tan Desai pointed out that after discussion with some members, it is expected that they will be open to all hypotheses of virus traceability, and further analysis and research are needed on relevant issues. Some work may not be within the scope of this expert group discussion.
Tan Desai stressed that the expert group will not find all the answers to the questions but will provide important information to understand the virus’s origin better. The expert group had a better understanding of the epidemic’s initial situation and identify areas for further analysis and research.
Tan Desai said that the number of new confirmed cases in the world has declined for four consecutive weeks, and the number of recent deaths has also declined for two consecutive weeks. This should be because countries have more strictly implemented public health measures.
Tan Desai stressed that while this is encouraging, complacency is as dangerous as the virus itself. This is not the time for any country to relax its measures or for any individual to relax its vigilance. Novel coronavirus pneumonia is the only way to control the new crown pneumonia epidemic.
He also called for health workers and the elderly in all countries to be vaccinated within the first 100 days of this year.
According to the latest data released by the World Health Organization on the 12th, the world’s total number of new confirmed cases has reached 107423526. According to the latest data from the WHO website, as of 15:07 CET on the 12th, the number of confirmed cases in the world increased by 417768 to 107423526, and the number of deaths increased by 12695 to 2360280.
Zhang Wenhong: targeted antiviral drugs should be successful in five years
At 0:18 today, Dr. Zhang Wenhong, director of the Department of infection of Huashan Hospital Affiliated to Fudan University in Shanghai, published a long article on his personal microblog, summarizing the experience of fighting against Xinguan for more than a year and making the latest judgment on the development situation of the epidemic in the future.
According to Beijing Daily, Zhang Wenhong’s Microblog has ten main points.
1. At present, the epidemic situation in Shanghai has come to an end and returned to our daily life, but after all, we can’t go back to the days before the epidemic. Shanghai is the airport with the largest number of international landing flights, and the task of treating imported cases is still burdensome. When people across the country have had a peaceful Spring Festival, many medical workers are still fighting in the front line, unable to reunite with their children and parents.
2. The unity of the whole people is the foundation for overcoming the once-in-a-hundred-year plague. After the battle of Wuhan, after the outbreaks in Xinfadi, Dalian, Xinjiang, Hebei, Northeast China, and even Shanghai and Tianjin, China has formed a systematic implementation plan, no matter how big or small, and thus free us from the fear of disease, which is the guarantee of a peaceful Spring Festival.
3. Plague is a game between humans and nature. The key to success lies in the government’s governance ability and the interaction between the government and the people. This epidemic shows that the strong government capacity and the people’s cooperation can reduce human death to the lowest point and achieve the ideal outcome that man will conquer nature.
4. The rapid development of human beings is bound to bring about a large-scale spread of diseases. However, the development of science and technology also offsets the harm of diseases. Human beings and nature are always in imbalance and rebalancing. The development of diagnostic technology, including the ability of large-scale screening of an urban population within a week and full detection of cases, is the technical basis of our non-drug intervention (full detection of infected persons and isolation of infection sources).
5. Although no specific targeted antiviral drugs have been obtained so far, human beings still have no cocktail therapy similar to that for AIDS. Still, human beings rely on the existing organ support technology, which can support critically ill patients to rely on their own immune recovery, and ultimately overcome the disease.
It is believed that human beings will eventually obtain targeted antiviral drugs, which should be successful within five years. Targeted drugs can reduce the mortality rate, supplement the inadequate global vaccination, and give the world a chance to reopen.
6. The covid-19 has become a resident virus in the world. Apart from vaccines, there is no other way to open it in the world unless it is willing to pay a lot of death.
Assuming that the protection of the vaccine is permanent, if the effective rate is 100%, the vaccination rate needed to establish the group immunity is 60% ~ 72%; if the effective rate of the vaccine is less than 80%, then all people need to be vaccinated to establish the group immunity. When the priority is given to adults over 60 years old, the mortality can be minimized.
7. According to the basic principle of evolution, the virus may mutate after infecting the population. Natural selection will favor the transmission of mutant strains with high preference and strong infectivity in the population. The mutation will continue, but both in China and internationally, the vaccine production line is now enough to cope with these mutations.
8. Global reopening depends on the accessibility and fairness of vaccines and the speed of promotion. With the advent of the Chinese new year, from the interaction between leaders of major countries (China and the United States) and greetings on New Year’s Eve, a global consensus to support promoting global vaccination may take a turn from the arrival of the Chinese New Year.
9. For China, which has almost no local cases, through strengthening the construction of public health system, early warning, rapid response, accurate prevention and control, and dynamic clearing, it gradually enters the normalization stage until the completion of universal vaccination coverage.
10. Like it or not, global collaboration is a standard option for all countries in the world. China can’t win this battle alone because the world is a community. Europe and the United States can not complete the vaccination independently. Unless China and the United States cooperate and meet the vaccination globally, it will be difficult to achieve the world’s opening up.
Source: Daily Economic News