People's Daily health client reporter Wang Zhenya
What is "Dynamic Zeroing"? Why "dynamic zeroing"? Academician Zhong Nanshan, Academician Zhang Boli, Liang Wannian, Wu Zunyou and other experts interpreted the necessity, feasibility and strategy of the "dynamic zero clearance" policy from different angles on many occasions.
Why dynamically zero zero?
Zhong Nanshan: Aomi Kerong has strong communication power and should adhere to dynamic clearance
Academician of the Chinese Academy of Engineering Zhong Nanshan. Photo by Zhu Xingxin, China Daily
On April 8, Zhong Nanshan, an academician of the Chinese Academy of Engineering, said in an online live class at Nankai University that the key issue of new crown pneumonia is to minimize transmission and case fatality rates. The current epidemic of Omiclon is highly transmitted, and if it occurs on a large scale, it will lose a lot of life. Therefore, at present, complete opening up is not applicable, and for China, it should still adhere to dynamic clearance.
Where is the basis for achieving "dynamic zeroing"?
Chamberlain: We have the ability to achieve "dynamic zeroing"
Photo by Zhang Boli, academician of the Chinese Academy of Engineering and honorary president of Tianjin University of Traditional Chinese Medicine, xinhua news agency reporter Li He
Zhang Boli, an academician of the Chinese Academy of Engineering, once revealed in an interview with the People's Daily health client that the mainland's dynamic zeroing policy is still the most effective means in the short term.
Academician Zhang Boli pointed out that the mainland has always adhered to the strategy of "internal defense rebound, external defense input" and "dynamic clearance, precise prevention and control" is successful, ensuring the people's life and health, but also ensuring economic and social stability and development, comprehensive judgment, our cost-benefit ratio is the best, but also highlights the mainland's institutional advantages and scientific decision-making, the mainland epidemic prevention and control always put the people's life and health safety first.
On April 24, Zhang Boli, an academician of the Chinese Academy of Engineering and honorary president of Tianjin University of Traditional Chinese Medicine, introduced in an interview with a reporter that "dynamic zero clearance" and "absolute zero clearance" are two completely different concepts. According to China's population density and demographic structure, once the epidemic control is relaxed, it will face the consequences of widespread spread of the virus, severe illness and a huge number of deaths.
How to achieve dynamic zeroing?
Liang Wannian: Unable to completely prevent the occurrence of infection, found to extinguish together
Liang Wannian, head of the expert group of the National Health Commission's Leading Group for Epidemic Response and Handling
On April 22, Liang Wannian, head of the expert group of the National Health Commission's Leading Group for Epidemic Response and Handling, said in an exclusive interview with a CCTV reporter that the core of China's general policy of "dynamic zeroing" is to extinguish the epidemic together under the current situation that the virus cannot be eliminated and the infection cannot be completely prevented.
Liang Wannian further introduced that the core of "dynamic zero clearance" is two words. The first is to emphasize the "dynamic", once the outbreak caused by this disease is discovered, the infected people are quickly identified, and the epidemic is contained so that it does not cause greater harm to a wider range of people. The second key word is "zeroing out". "Zero clearance" has three meanings: one is the elimination of the virus, the second is the control of the disease, and the third is the control of the epidemic. The most critical "zero" goal at this stage is to clear the "epidemic".
How to go next to dynamic zeroing?
Wu Zunyou: The core is to cut off the transmission chain
On the evening of April 17, Wu Zunyou, chief expert of the Chinese Center for Disease Control and Prevention, posted a long article on Weibo, explaining in detail the "dynamic zero clearance" policy.
Wu Zunyou, chief expert of the Chinese Center for Disease Control and Prevention
Wu Zunyou said that "zeroing" is the process from existence to nothing, that is, the process of eliminating the epidemic. However, this eradication only refers to a certain epidemic that occurs at a certain time in a certain place, and does not refer to the general epidemic situation nationwide in a broad sense. "Dynamic" means that the outbreak and zeroing are constantly changing. After each outbreak, it can be extinguished in a relatively short period of time, so that the epidemic is zero.
The core of dynamic zeroing is to cut off the propagation chain. The main measures for dynamic zeroing include early detection, early reporting, early isolation, and early treatment, the so-called "four early" measures.
Wu Zunyou further analyzed, "In general, the earlier the epidemic is detected, the smaller the scope of its impact, the easier it is to achieve dynamic clearance. Even if a certain proportion of community transmission occurs, with the county (district) as the basic unit, as long as the number of counties (districts) where the new crown epidemic occurs, the proportion of the total number of counties (districts) in the country is very small, it can be dynamically cleared. If these counties (districts) where community transmission occurs are scattered in 31 provinces, autonomous regions and municipalities directly under the central government, dynamic zeroing is relatively easy to achieve; if these counties (districts) with community transmission are concentrated in a few provinces, autonomous regions and municipalities directly under the central government, the difficulty of dynamic zeroing will be greater, and the time required will be longer. ”