We will further improve the multi-channel monitoring, early warning and multi-point trigger mechanism for the epidemic, carry out "landing inspection" for trans provincial floating personnel, timely report those infected according to law, and do a good job in flow and risk personnel control as soon as possible... All regions have taken a series of practical measures to earnestly implement the decisions and arrangements of the Central Committee of the Communist Party of China, implement the "four early" requirements, reduce the scale of the epidemic and disposal time, and improve the effectiveness of normalized epidemic prevention and control. On the 11th, the joint prevention and control mechanism of the State Council announced 20 measures to further optimize the epidemic prevention and control. Such adjustment and optimization is the improvement of the ninth version of the prevention and control plan, is based on the grasp of the law of virus mutation and transmission and the summary of the prevention and control experience of various regions in the past three years, is a more scientific and accurate measure that strives for progress while maintaining stability, keeps taking small steps, conforms to China's national conditions, is not to relax prevention and control, nor is it to open up and "lie flat". We should deeply understand and grasp the optimization and adjustment of epidemic prevention and control measures, adhere to the established prevention and control strategies and guidelines, and do a good job in scientific and accurate epidemic prevention and control. The faster you run in the right direction in the race against viruses, the more you can take the initiative in fighting the epidemic. Since the normalization of epidemic prevention and control, it is precisely because we have adhered to scientific, accurate and dynamic zeroing, optimized and improved prevention and control measures according to the time and situation, and quickly and effectively handled the cluster epidemic in local areas. We have withstood the impact of rounds of epidemic, protected people's life safety and health to the greatest extent, and achieved significant positive results in coordinating epidemic prevention and control and economic and social development. Practice has fully proved that adhering to dynamic zero clearing is an inevitable requirement for adhering to the principle of people first and life first, a powerful manifestation of respect for science and laws, and the best choice for China to control the epidemic in a timely and effective manner at this stage. At present, COVID-19 is still changing, the global epidemic situation is still prevalent, and the final trend of the epidemic situation is still very uncertain. From the perspective of the virus itself, the transmission power of Omicron is far greater than that of influenza and other COVID-19 mutants before, and the immune escape ability of some subfields of Omicron mutants has significantly increased. China is a large country with a large population. In addition to unbalanced regional development and insufficient total medical resources, relaxation of prevention and control will certainly increase the risk of infection among vulnerable populations. Once a large-scale rebound is formed, it will definitely have a serious impact on economic and social development, and the final cost will be higher and the loss will be greater. The more arduous the task of epidemic prevention and control and the more complex the situation is, the more we need to keep a clear head and overcome paralytic thoughts, war weariness, fluke mentality and relaxed mentality. Only by unswervingly implementing the general policy of "dynamic reset" and firmly holding the bottom line of no large-scale rebound of the epidemic, can people's life safety and health be protected to the greatest extent and the impact of the epidemic on economic and social development be minimized. The essence of "dynamic reset" is fast and accurate,