The joint prevention and control mechanism of the State Council held a press conference on the 6th. Wu Liangyou, deputy director of the disease control bureau of the National Health Commission, said that since mid April, China's epidemic situation has continued to fluctuate and decline. During the "May Day" holiday, the national epidemic situation has been generally stable. From April 30 to May 5, the average number of newly reported infections in the country has decreased by 80% compared with the peak. At present, the overall situation of the national epidemic situation has improved, but it is still complex and severe, and there is a risk of rebound. It is necessary to speed up the disposal of local aggregated epidemic situations, improve prevention and control measures in time, and prepare for the response to the epidemic situation. Wu Liangyou said that the number of new infections per day in Shanghai has continued to decline recently, and the situation of epidemic prevention and control has continued to stabilize; The epidemic situation in Jilin Province is still in the final stage, and the risks outside the isolation points and closed control areas have been basically controlled; The epidemic situation in Beijing has been controlled through regional nucleic acid screening and close screening, and the risk of proliferation has been reduced; The epidemic situation in Nanchang City, Jiangxi Province has been effectively controlled, but the epidemic situation in Shangrao City needs to strengthen screening and control; Liaoning, Zhejiang, Henan and other places have recently seen new outbreaks with unknown sources of infection, which have hidden transmission risks, making it more difficult to trace the source of investigation, control and prevention. We should continue to adhere to dynamic zeroing. Liang Wannian, head of the expert group of the epidemic response and disposal leading group of the National Health Commission, said that China's epidemic prevention and control has entered the fourth stage of "scientific, accurate and dynamic clearing" of all-round comprehensive prevention and control. In this stage, in addition to emphasizing speed and accuracy, we should also emphasize comprehensiveness, that is, we should take some comprehensive prevention and control measures, including the management of infectious sources, the rapid blocking of transmission routes and the protection of vulnerable people. These measures should be effectively combined and superimposed, attack as quickly as possible, and take the strictest, most thorough and most resolute measures to prevent the social spread of the epidemic. In principle, in the early stage of the epidemic, when the transmission chain is clear and the risk is controllable, it is not necessary to adopt global static management. However, when there is widespread community transmission, the transmission chain is unclear, and there is a high risk of outbreak and large-scale rebound, it is necessary to comprehensively consider the epidemic characteristics, stage, prevention and control ability, socio-economic level and demographic characteristics to decide whether to take more stringent prevention and control measures. (outlook new era)