At the press conference on the prevention and control of the COVID-19 in Shanghai held on May 17, the person in charge of the Shanghai Municipal Health Commission disclosed that at present, all 16 districts in the city have achieved social clearance. At the same time, the battle between Beijing and the epidemic is still in a stalemate. According to the disclosure, at present, there have been a series of aggregated epidemics in Beijing and the spread of hidden cases in society has been found through continuous screening, which has further compacted the responsibility of prevention and control. Nationwide, in recent days, the number of newly confirmed local cases and asymptomatic infections in China has continued to decline, but the local transmission has not been completely blocked in some places, and the situation of epidemic prevention and control is still severe and complex. If we consider that the global epidemic is still at a high level and the virus is still mutating, this round of epidemic prevention is far from the time to relax and rest. At this time, we must resolutely overcome the mentality of paralysis, war weariness, luck and slackness, deeply understand the complexity and arduousness of the anti epidemic struggle, resolutely implement the decision-making and deployment of the Party Central Committee, fully carry forward the spirit of the struggle, and resolutely build a solid barrier for epidemic prevention and control with the decisive attitude of "sailing against the current, not advancing or retreating". At present, the epidemic situation is complex. The Omicron mutant, which is the main epidemic strain of this round of epidemic, has strong infectivity, fast transmission speed, high concealment and a large proportion of asymptomatic infections. It is more difficult to find and prevent. The local epidemic situation in China is characterized by many points, wide range and frequent occurrence. There is still great uncertainty about the final trend of the epidemic situation. This means that the fight against the epidemic is a long-term and continuous work, and any idea of achieving it overnight is unrealistic. This requires that all localities and departments must take the spirit of twelve points, comprehensively improve the scientific and accurate level, adhere to the organic combination of civil air defense, material defense and technical defense, improve and improve the command system, organize and strengthen the grass-roots defense line, and effectively improve the quality and efficiency of prevention and control work. It should be noted that there are still some problems in some areas, such as the defense line is not solid enough, the prevention and control is not accurate enough, and the effect is not obvious enough. A little negligence will lead to large-scale spread. This also reminds all parties concerned that building a strong prevention and control barrier should be solidly applied to specific people, things and places. We must pay close attention to the "last 100 meters" of detailed prevention and control measures, be strict and tight, control speed with speed, and strictly prevent sticking to it, fishing and screening. Once a node is successfully matched, it will lead to any failure. In fact, after more than two years of epidemic prevention, we have accumulated a lot of mature experience in "dynamic zeroing". The government, medical and health institutions and communities can operate efficiently. All localities also learn from each other in scientific and accurate prevention and control, and the overall effect is also very obvious. At this time, we should pay more attention to the early, small and basic work, implement the prevention and control work to the letter, and resolutely avoid "letting go of one penny and retreating a thousand pursuits". Continuous anti epidemic is a test of patience and willpower. No one doesn't want to "go to the clouds" earlier, but the more so, the more vigilant we should be, and the virus can't make a comeback due to a temporary relaxation. In the critical period and arduous stage of "sailing against the current and retreating if you don't advance", we need to fight bravely and tenaciously, give a go and resolutely win the interdiction war of epidemic prevention and control. Continue to improve the nucleic acid detection capability, accelerate the construction of a "sampling circle" for nucleic acid detection within 15 minutes walk, form a 48 hour normalized nucleic acid detection, accelerate the realization of full coverage of "site code", clarify the technical standards for the use of "site code", promote special classes and assign special personnel to take charge, consolidate and build a solid digital defense line at the basic level... All these efforts will not be in vain, but will become a solid foundation for epidemic prevention and control barrier. Moreover, while doing a good job in epidemic prevention and control, all localities should constantly improve the normalized assistance mechanism for stabilizing posts, improve the enterprise closed-loop management plan, and comprehensively promote economic development, livelihood security and other work. If people are stable, society will be in order, and if people are calm, epidemic prevention and control will be powerful. Race against time, fight against the virus, and compete with laziness. On the issue of epidemic prevention and control, we should not be perfunctory at all. Only by doing our duty with everyone's heart, gripping our teeth and abandoning lax thinking, can we build a stronger and more solid barrier for epidemic prevention and control. (Xinhua News Agency)