China News Service, Beijing, December 11 (Xie Yanbing) Recently, a small-scale local epidemic caused by overseas imports has occurred in some areas of China.

Why are there many "breaking defenses" in border port cities recently?

Why always insist on "dynamic reset"?

The Omi Keron mutant is here, how to deal with it?

　　The Joint Prevention and Control Mechanism of the State Council of China held a press conference on the 11th. The reporter found out that the press conference explained the above issues in detail, and at the same time pointed out a top priority, a general policy, and two effective methods for the current epidemic prevention and control.

　　A top priority: ports

　　The spokesperson of the National Health Commission of China, Mi Feng, said at the press conference that day that the Omi Keron variant has further increased the uncertainty of the epidemic, and China’s “foreign defense import” pressure continues to increase.

The key to epidemic prevention and control is "prevention."

　　Liang Wannian, head of the expert group of the Leading Group for Epidemic Response and Handling Work, also stated that since April last year, almost all of the more than forty epidemics have been related to the import of foreign cases, and the prevention and control of overseas import is the focus.

　　Although border port cities have been repeatedly asked to build a strong line of defense, why have they "breaked defenses" many times recently?

In this regard, Liang Wannian said that China's ports, border points, long lines, and wide areas, especially some land ports, often lack natural barriers, which brings great difficulties to epidemic prevention and control.

At the same time, the new crown virus can spread through people and things, making prevention and control more difficult.

　　Up to now, there have been 524 confirmed cases in Manzhouli, Inner Mongolia, and the number of reported cases has fluctuated and declined recently.

Wu Liangyou, deputy director of the CDC of the National Health Commission, pointed out that the sequencing analysis of the viral genome of the Manzhouli epidemic in Inner Mongolia showed that the epidemic was caused by a new overseas source and was not related to the previous epidemic in Inner Mongolia.

　　Manzhouli is a port city in northern China. Guo Yanhong, the inspector of the Medical Administration and Hospital Administration of the National Health Commission, said that in terms of medical treatment, a patient evacuation and support mechanism has been established in accordance with the characteristics of the port city. In the process of the rapid increase in the number of patients, timely Hailar People’s Hospital, which is more than 200 kilometers away, was opened, and more than 360 designated hospital beds were opened to relieve the pressure on Manzhouli port hospitals.

　　It is understood that on the 10th, 5 patients have been cured and discharged from the Manzhouli Port Hospital.

"So far, Manzhouli has completed 12 rounds of nucleic acid testing for all employees and is carrying out the 13th nucleic acid test for all employees," said Guo Yanhong.

　　A general policy: "dynamic reset"

　　According to the press conference, China's epidemic prevention and control has entered the third stage, which is the "dynamic reset" stage of precise prevention and control of the entire chain.

How to understand "dynamic reset"?

Why always insist on "dynamic reset"?

　　Liang Wannian pointed out that "dynamic zeroing" is the current general policy for the prevention and control of the new crown pneumonia epidemic in China. It refers to the integration of comprehensive prevention and control measures taken when local cases occur under the current circumstances to quickly eradicate the epidemic.

　　He further introduced that the connotation of "dynamic reset" can be understood from three aspects.

First, how to proactively discover the source of infection in time.

Second, once a case is detected, public health and social intervention measures must be taken quickly, including control of epidemic spots, management of close contacts, epidemiological investigations, and control measures such as reducing crowd gathering.

Third, effective treatment.

Prevent the severity from turning to severe, and reduce the occurrence of severe illness and death.

　　He also particularly emphasized that "dynamic zeroing" is the general policy, and it is necessary to pursue speed and precision, and to maximize the overall planning of social and economic development and epidemic prevention and control.

"Dynamic clearing" is not "zero infection".

"We still do not have the ability not to have a single local case, but we have the ability and confidence to quickly extinguish the epidemic when a local case is found." He said, "dynamic zeroing" is not about lying flat, not allowing the epidemic. To develop, but to control it and cut it off.

　　Wu Liangyou also said that it is necessary to adhere to the general policy of "dynamic zeroing" without wavering.

New Year's Day and the Spring Festival are approaching, and the risk of epidemic spread is increasing. It is necessary to make greater efforts in "scientific precision" to control the epidemic in the shortest time.

　　Two effective methods: nucleic acid testing and vaccination

　　Recently, the emergence of Omi Keron mutant strains has aroused global attention. How to deal with it?

According to the press conference, nucleic acid testing and vaccination are still effective methods for epidemic prevention and control.

　　Wu Liangyou pointed out that whether the Omi Keron mutant has a stronger spreading power and immune escape risk than the Delta mutant requires further observation.

The Omi Keron variant does not affect the sensitivity and specificity of the existing nucleic acid detection reagents in China, and the Chinese surveillance system has the ability to detect imported cases of the Omi Keron variant in a timely manner.

　　Guo Yanhong also said that with the continuous emergence of mutant strains, China's current nucleic acid testing is still an effective way to find viruses.

Up to now, 30 provinces have reduced the price of nucleic acid testing for a single tube to less than 40 yuan (RMB, the same below), and mixed testing to less than 10 yuan to effectively reduce the burden of nucleic acid testing for the people.

　　Wu Liangyou once again emphasized the role of vaccines at the press conference, "new coronavirus vaccination is still an effective means of epidemic prevention and control."

　　According to data from the National Health Commission, as of December 10, China's new crown virus vaccine has completed the entire vaccination process of 1,162.49 million people, the proportion of the population covered by the full vaccination has reached 82.5%, and the booster vaccination has been completed for 120.58 million people.

　　Wu Liangyou said that in the next step, the National Health Commission will continue to accelerate the promotion of new crown virus vaccination, guide the elderly over 60 to speed up vaccination, and actively and steadily carry out vaccination work for people aged 3 to 11.

　　Regarding the adverse reactions of the elderly and children between the ages of 3 and 11, the "one old and one young" group of people received the new crown vaccine. Wang Huaqing, chief expert of the immunization program of the Chinese Center for Disease Control and Prevention, said at the press conference that the adverse effects of the elderly over 60 years old The incidence of reaction reports is lower than that of adults under 60, and the incidence of serious adverse reactions in children aged 3 to 11 is lower than that of teenagers and adults.

Among the adverse reactions reported in the report, the elderly are the same as children, and the general reactions account for the vast majority, and the abnormal reactions are only a small part.

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