(Fighting against New Coronary Pneumonia) The New Coronary Epidemic "Cannot Be Cleared"? Wu Zunyou: It is more difficult and takes longer, but it will definitely be achieved
China News Service, Beijing, April 1 (Reporter Li Chun) Since the beginning of this year, especially since the introduction of the Omicron variant into China, the new crown epidemic in China has been emerging one after another. Is the new crown epidemic "unable to be cleared"?
Wu Zunyou, chief epidemiologist at the Chinese Center for Disease Control and Prevention, said in Beijing on April 1 that "dynamic clearing" is more difficult and takes longer, but it will definitely be achieved.
On the same day, the joint prevention and control mechanism of the State Council of the People's Republic of China held a press conference on the situation of epidemic prevention and control.
Wu Zunyou said that based on China's more than two years of prevention and control experience and new understanding of the changes in the new crown virus, China can achieve the goal of "dynamic clearing".
"It should be admitted that due to the strong infectivity and fast transmission speed of the Omicron variant strain, coupled with a certain proportion of asymptomatic infections, it is more difficult to 'dynamically clear', and it is necessary to 'dynamically clear' It may take longer, but as long as we implement the prevention and control measures strictly and quickly in every link, we will definitely be able to achieve the goal of 'dynamic clearing'." Wu Zunyou said.
He said that in view of the new characteristics of invisibility and fast transmission shown by the epidemic of the Omicron variant strain, a more sensitive monitoring system is needed to detect the epidemic earlier and implement various prevention and control measures faster. This is a new The main challenges facing the realization of "dynamic clearing" under the situation.
At present, the Omicron BA.2 strain has a high proportion of asymptomatic infections when it is prevalent. Why do we still insist on "dynamic clearing" in this case?
Wu Zunyou said that because of its rapid spread, a large number of infected people will be produced in a short period of time, so the total number of deaths caused is still high.
"By analyzing the data released by some foreign countries, it can be seen that the number of deaths caused by the Omicron virus strain during the epidemic is higher than that caused by the Delta virus strain during the same period. The epidemic of the virus is still very serious to a country or region." Wu Zunyou said, therefore, we must strive to control the epidemic in a short period of time. China's prevention and control practice has proved that "dynamic clearing" is still the best way to control the new crown epidemic. The most economical and most effective prevention and control strategy.
In response to the problem that asymptomatic infections are difficult to find, Wu Zunyou said that some technical means can be used, such as assisting epidemiological investigations to clarify the transmission chain through big data, and tracing close contacts, so as to discover asymptomatic infections on the transmission chain By.
In addition, it is also possible to move the monitoring line of defense a step further, and through the monitoring mode of "antigen screening + nucleic acid diagnosis", asymptomatic infections can be detected as soon as possible and the chain of transmission can be cut off.
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