Clear! “Virus coexistence” is a wrong idea, “virus influenza” is a wrong argument

Faced with the fast-spreading Omicron epidemic, we must take the strictest, most thorough, and most resolute measures to stop the spread of the epidemic in society as soon as possible.

Writing | Tian Dongliang

Source | “Medical Community” Public Account

Ma Xiaowei, director of the National Health Commission, recently published an article on the first page of “Study Times”, “Contain the spread of the epidemic as soon as possible, and resolutely consolidate the hard-won results of prevention and control.” The general strategy of preventing import from outside, and preventing rebound from within” and the general policy of “dynamic clearing”, and describe “virus coexistence” and “virus influenza” as wrong ideas and wrong arguments.

Director Ma Xiaowei pointed out that my country has gone through four stages of epidemic prevention and control. The first stage is the emergency containment stage for sudden outbreaks, the second stage is the normalized prevention and control exploration stage, and the third The third stage is the “dynamic clearing” stage of accurate prevention and control of the whole chain, and it has entered the fourth stage of “scientific precision, dynamic clearing” of comprehensive comprehensive prevention and control. In the face of the fast-spreading Omikron epidemic, we must take the strictest, most thorough, and most resolute measures to stop the spread of the epidemic in society as soon as possible.

How should “dynamic clearing” be understood? On the evening of April 18, Wu Zunyou, the chief epidemiologist of the Chinese Center for Disease Control and Prevention, released a long interpretation of the article through Weibo.

As for “dynamic clearing”, Wu Zunyou believes that the fundamental purpose of dynamic clearing is to discover an epidemic, put out an epidemic, and prevent the epidemic from “taking root” locally. The soul of dynamic clearing is to find out early, control it early, and eliminate every epidemic in the bud. The core of dynamic clearing is to cut off the transmission chain. The main measures include early detection, early reporting, early isolation, and early treatment.

Wu Zunyou also pointed out four misunderstandings about “dynamic clearing” in the article:

Myth #1: Zero infections. Dynamic clearing does not mean zero infection, and dynamic clearing does not pursue zero infection. Dynamic clearing emphasizes the clearing of infected people at the social level, and does not require that there are no infected people in the location of the epidemic. The so-called social level clearing means that there are no infected people among the people who are freely active in the society. It does not matter even if there are a certain number of infected people among the people under quarantine management, because they are in a state of isolation and will not spread to the society.

Myth #2: Banning. The dynamic clearing measures are not the same as the closure and control measures. The measures taken for dynamic clearing depend on the stage of detection of the epidemic. If it is found early, it is only necessary to isolate and treat the patients, and isolate and observe the close contacts to achieve zero clearing. Containment measures should only be used if there is significant community transmission.

Misunderstanding 3: Nucleic acid testing for all staff. Dynamic clearing is also not the same as nucleic acid testing for all staff. Don’t mention dynamic clearing, and think of nucleic acid testing for all staff in the city. As long as the epidemic is discovered early, the transmission chain is clear, and close contacts are identified, there is no need to conduct nucleic acid screening for all staff. Only when there is a lot of community transmission and the transmission chain is unclear, nucleic acid screening measures for all employees are used.

Myth #4: Affects the economy. In fact, only dynamic clearing can escort economic construction to the greatest extent. Only when the situation of the epidemic situation is severe, and it is necessary to take a wide range of nucleic acid screening and containment measures for all employees, will the dynamic clearing strategy have a certain impact on economic development. According to the preliminary analysis of mathematical model experts, the impact of the dynamic reset strategy on the local GDP is only half of the economic impact of the non-dynamic reset strategy.

However, the current epidemic prevention and control in many places in China not only meets the requirements of Director Ma Xiaowei to “take the strictest, most thorough, and most resolute measures”, but also exactly meets Wu Zunyou’s statement The misunderstanding of “dynamic clearing”, lockdown and nucleic acid testing of all staff are currently common epidemic prevention measures in many parts of the country.

From 0:00 on April 6, Shangqiu City, Henan Province, in the absence of reports of new crown cases, requires all non-essential shopping malls, supermarkets and professional stores in the city to suspend business. The reason is that Shangqiu is facing the dual pressure of “foreign protection against importation and internal protection against rebound”, which can effectively prevent and reduce the gathering of people. From 0:00 on April 19, Shangqiu gradually resumed normal production and life order.

On April 14, Huoqiu County, Anhui Province reported 3 asymptomatic infections. From 22:00 on April 16, Huoqiu County implemented static management.

On April 16, a case of positive infection was found in the main urban area of ​​Wuhu City, Anhui Province. From 4:00 a.m. on April 17, the main urban area of ​​Wuhu City implemented static management and immediately launched a regional Staff nucleic acid testing.

When explaining the misunderstanding of “dynamic clearing”, Wu Zunyou cited Shanghai as an example. In the past two years, there have been 12 new crown epidemics in Shanghai, and the maximum number of cases in each epidemic There were no more than 25 cases, it was controlled, and zero was achieved, and no closure and control measures were taken.

However, Shanghai is currently in the throes of the pandemic. After this round of epidemic, Shanghai still has the confidence to draw a risk area the size of a milk tea shop, and it will be a question mark.

On April 19, the Joint Prevention and Control Mechanism of the State Council held a press conference on epidemic prevention and control. At the meeting, it reiterated that the strict implementation of differentiated prevention and control measures should be strictly avoided to prevent “one size fits all”, “simplification” and “” Layer upon layer overweight”, it is strictly forbidden to set up cards to intercept without authorization, open roads and seal villages at will, maintainProtect the order of agricultural production and the circulation of personnel and materials.

The new coronavirus has been mutating continuously. Regarding the view that some people think that the new coronavirus is mutating towards increased infectivity and weakened pathogenicity, Wu Zunyou also said at the press conference: From a biological point of view, there is no essential link between infectivity and pathogenicity. At present, it has not been found that the new coronavirus mutation has obvious rules in terms of infectivity and pathogenicity. It may develop in the direction of increasing infectivity and weakening pathogenicity, or it may increase in the direction of increasing infectivity and pathogenicity. develop. No matter how mutated, we have to prepare for the worst possible.

Source: Medicine

Editor in charge: Zheng Huaju

Proofreading: Zang Hengjia