On December 18, the joint prevention and control mechanism of the State Council held a press conference to introduce the scientific and accurate prevention and control of the epidemic during the New Year's Day and Spring Festival.
The Red Star News reporter noted that not long ago, the National Health Commission said that China is in the "dynamic zeroing" stage of accurate prevention and control of the whole chain. So, at this stage, how will the precise prevention and control of the whole chain in China be carried out? In this regard, Liang Wannian, head of the expert group of the National Health Commission's Leading Group for Epidemic Response and Handling, made a detailed response at the meeting.
Liang Wannian said that from August 2021, China began to enter the "dynamic zeroing" stage of accurate prevention and control of the whole chain. The prevention and control goal at this stage is to minimize the occurrence of the epidemic, efficiently deal with sporadic cases and clustered epidemics after the outbreak of the epidemic, and strive to prevent and control the epidemic within a maximum incubation period, so as to obtain the greatest prevention and control results at the smallest social cost.
▲ Liang Wannian
Liang Wannian explained that the so-called "dynamic zeroing" stage of accurate prevention and control of the whole chain actually means that, under the premise of following the general strategy of "external prevention and import, internal prevention and rebound", when there are cases of local new crown pneumonia epidemic, effective comprehensive prevention and control measures are taken, and effective comprehensive prevention and control measures are taken to find and extinguish together, quickly cut off the epidemic transmission chain, so that each epidemic is terminated in a timely manner, so that the infected people of this epidemic are "cleared" and achieve a prevention and control goal of achieving the greatest results at the smallest cost. It is a summary of China's experience in prevention and control, and it is also the best choice for the current epidemic prevention and control.
The meaning of accurate prevention and control of the whole chain, Liang Wannian believes, can be understood from the three links and two factors of infectious disease prevention and control. Regarding the prevention and control of infectious sources, the first is to implement accurate remote prevention and control and closed-loop management after entry around "external prevention input". At the same time, the spread of goods is accurately prevented. The second is to strengthen monitoring, such as fever clinics to improve the sensitivity of monitoring. The third is to strengthen nucleic acid testing, such as for high-risk positions to effectively achieve "due diligence". The fourth is to strengthen the monitoring of virus mutations and timely discover the mutations.
As for the prevention and control of transmission routes, Liang Wannian pointed out that the first is to adhere to the same prevention of people, things and the environment. The second is to adopt precise management of zoning and grading, and once the epidemic occurs, it is necessary to further divide the sealing, control and prevention areas. The division of these standards should be gradually accurate and gradually reduced.
Regarding the scientific connotation of accurate prevention and control, Liang Wannian explained that the first is to accurately carry out epidemiological investigations. Because only accurate epidemiological investigation, coupled with the combination of big data and related technologies, can we make a more scientific and objective judgment on the determination of the source of infection, the determination of the scope of transmission, the division of epidemic areas, and the trend of the epidemic situation. The second is to accurately carry out disease monitoring and detection. The third is to accurately delineate the scope of the epidemic area.
The fourth is to accurately delineate close contacts and implement precise management. Liang Wannian also stressed that in addition to the monitoring and management of diseases and symptoms, special attention should be paid to the service work of mental health and psychological counseling. In addition, it is also necessary to accurately carry out clinical treatment and accurately coordinate epidemic prevention and control and social and economic development.
Red Star News reporter Yang Yuqi Yan Yucheng reported from Beijing
Edited by Chai Chang
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![How to grasp the "dynamic zeroing" stage of accurate prevention and control of the whole chain? Detailed explanation by the National Health Commission[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)