Improve the scientific precision of epidemic prevention and control

The State Council joint prevention and control mechanism held a press conference on the 28th, introducing the scientific and precise work on the prevention and control of the epidemic, and answer questions from reporters. Mi Feng, spokesman for the National Health Commission and deputy director of the Department of Publicity, introduced the 28th, "New Coronavirus Pneumonia Prevention and Control Program (Ninth Edition)" was officially announced. The State Council Joint Prevention and Control Mechanism integrated group held a national epidemic prevention and control teleconference, stressing that all departments around the country should always tighten the strings of epidemic prevention and control, strictly implement the ninth version of the prevention and control program, the control of the resolute control, the implementation of the resolute implementation, the cancellation of the resolute cancellation, inconsistent measures to clean up the deadline.

Lei Zheng long, deputy director and first-level inspector of the National Health Commission's Disease Control Bureau, introduced the revision of the prevention and control program, based mainly on changes in the epidemic situation, the characteristics of Omicron mutant strains and the preliminary pilot study, combined with the lessons learned from the prevention and control work in Shanghai and Jilin, and with reference to the guidelines issued by WHO in the first half of the year. Compared with the eighth edition, the ninth edition has been revised in three main aspects: optimizing and adjusting the duration and manner of isolation management of risk personnel, unifying the criteria for delineating the sealing control zone and medium-high risk zone, and improving the requirements for epidemic surveillance.

Lei Zheng long stressed that the ninth edition of the prevention and control program is the optimization of the control measures, not to relax the prevention and control, but more demanding, requiring more standardized, more accurate, faster. We should adhere to the general strategy of "external prevention of import, internal prevention of rebound" and the general policy of "dynamic zero" without wavering, further improve the scientific and precise prevention and control of the epidemic, make full use of resources, improve the efficiency of prevention and control, and coordinate the prevention and control of the epidemic and economic and social development.

The ninth edition of the prevention and control program optimized the time frame and manner of isolation and control of risk personnel: the isolation and control time of close contacts and incoming personnel was adjusted from "14 days of intensive isolation medical observation + 7 days of home health monitoring" to "7 days of intensive isolation medical observation + 3 days of home health monitoring "The nucleic acid testing measures were adjusted from "1, 4, 7, 14 days of centralized isolation medical observation, nasopharyngeal swab collection, double collection and double testing before release from isolation" to "1, 2, 3, 5, 7 days of centralized isolation medical observation and 3 days of home health monitoring Day nucleic acid testing, collection of oropharyngeal swabs." Discharge of centralized isolation of medical observation before no longer double picking double detection. Close contact control measures from "7 days of centralized isolation medical observation" adjusted to "7 days of home medical observation", day 1, 4, 7 nucleic acid testing.

"This adjustment does not mean that the prevention and control measures are 'relaxed', but that the prevention and control measures are further optimized according to the epidemiological characteristics of the Omicron mutant strain, which does not increase the risk of the spread of the disease and is a reflection of precise prevention and control." Wang Liping, a researcher at the CDC's Transmission and Prevention Division, said.

Cheng You Quan, deputy director of the comprehensive supervision bureau of the National Health Commission, said that in order to efficiently solve the problem of "cascading" epidemic prevention and control as reflected by the public, the State Council Joint Prevention and Control Mechanism Integrated Group, together with relevant member units, has set up a special team to rectify the problem of "cascading". At present, the members of the task force have set up a column on the issue of "cascading" through the portal of the department or published a complaint telephone number to collect clues on the issue of violation of the "nine prohibitions" for the society, and the public can make complaints through the website or telephone. The joint prevention and control mechanism of the State Council also requires the provincial joint prevention and control mechanism to set up a provincial task force to rectify the problem of "cascading". The national and provincial task forces will supervise the implementation of epidemic prevention and control policies, strictly implement the "nine no-no" requirements for epidemic prevention and control, and resolutely rectify the simplistic, "one-size-fits-all" and "cascading" problems. "and other outstanding issues.

"Since February this year, the main strain of virus prevalent in China is Omicron BA.2 subbranch series." Wang Wen Ling, a researcher at the Institute of Viral Diseases of the Chinese CDC, said that in May, BA.4 and BA.5 were detected for the first time in China from imported cases. recently, the number of BA.4 and BA.5 infections found in imported cases outside of China showed signs of gradual increase. From the preliminary findings available, the transmission and immune escape ability of BA.4 and BA.5 have slightly increased, the difficulty of prevention and control will increase, and the pressure on our foreign defense importation has increased. "We will pay close attention to the epidemiological trends of BA.4 and BA.5 in the countries concerned, follow up the global research progress on the new mutant strains in a timely manner, evaluate and judge in a timely manner, guide the local communities to implement the requirements of the ninth edition of the prevention and control program, and do a good job in preventing and controlling the outbreak of Omicron mutant strains with scientific precision."