What does it mean to clear the epidemic situation to zero? How long will it take to be unblocked after being cleared? What is the difference with static clearing?
| During the epidemic, we often hear about dynamic zeroing. Dynamic zeroing is the general policy for the current prevention and control of the new coronavirus pneumonia in my country. It is also the best choice and general policy for the prevention and control of the epidemic in my country at this stage. So, what does it mean to achieve dynamic zero for the epidemic? How long will it take to be unblocked after being cleared? What is the difference with static clearing? 1. What does it mean to clear the epidemic situation to zero? Dynamic zero-clearing has two meanings. One is the ideal state, where there are no patients in society, but the uniqueness of the new coronavirus means that we cannot do it for the time being. The second meaning is that once an epidemic occurs, it can be quickly identified and dealt with, the chain of transmission can be cut off, and society as a whole will gradually move towards dynamic zero. If we do not pursue dynamic zero-clearing, social transmission will continue to connect, leading to a large-scale rebound. 2. How long will it take to lift the lockdown after the epidemic situation is cleared? 7-14 days. After the epidemic is cleared, the lockdown can generally be lifted after 7-14 days of observation. Because the incubation period of the new coronavirus is 7 to 14 days, if an area has no new confirmed or suspected cases for more than 14 days, control can be lifted. However, whether the blockade can be lifted or not still depends on local regulations. 3. What is the difference between dynamic zeroing and static zeroing of the epidemic? 1. Dynamic zeroing out of different epidemic prevention measures: my country’s current epidemic prevention measure is dynamic zeroing out, that is, through communication big data, local health codes and venue codes and other data to mark people’s locations most of the time. Once a confirmed patient is found, these data can be used to find and frame close contacts. For example, if a confirmed case of COVID-19 is found in a certain place, the above data will be used to find people who have intersections with the confirmed case in the same time and space, and full coverage of nucleic acid testing and full warning will be implemented on these people, and no control will be implemented on other people who are not in the intersection. According to the data, specific areas and personnel are controlled, while other normal areas and personnel do not implement relevant control measures. The method is dynamic zeroing. If the close contact is determined to be negative for nucleic acid test, they can return to the normal area and live a normal life. Static zeroing: It involves the whole society, all aspects and no blind spots. For example, during the Spring Festival of the year when the new coronavirus broke out, the whole society stopped work and production, going out was strictly prohibited in all places, and all people in the country, except for anti-epidemic workers, were quarantined at home. Static zero means implementing this status throughout the country, with no confirmed cases. 2. Comparison of advantages and disadvantages of dynamic zeroing: The advantage is that it is highly targeted in terms of control area and has a strong social impact; the disadvantage is that it requires individuals to have a good sense of epidemic prevention and cooperation, as well as a high sensitivity of relevant functional departments to relevant confirmed cases, and detailed prevention and emergency measures for epidemic prevention and control, because another outbreak may occur at any time. Static zero: The disadvantage is that the social impact is too great and economic development stagnates, but the advantage lies in the absoluteness of prevention and control, which can ensure that there are no confirmed cases when society operates. In general, dynamic zeroing of the epidemic means that under the current circumstances, when local cases appear, our country has taken an integration of comprehensive prevention and control measures to quickly eradicate the epidemic. This is a summary and distillation of my country's experience in epidemic prevention and control. |
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