China News Service, Beijing, March 9 (Zhang Yilin) ​​On the 8th, the number of newly confirmed cases reported by 31 provinces hit a new high.

At present, the number of newly infected people in 31 provinces has exceeded 500 for three consecutive days. What are the characteristics of the current epidemic?

On March 8, residents of Baita Community, Dabei Street, Dadong District, Shenyang City underwent nucleic acid testing.

Photo by China News Agency reporter Yu Haiyang

The epidemic spread in many places in the past three days, and the number of new local infections exceeded 500 every day

  According to the National Health Commission, on March 8, 31 provinces (autonomous regions and municipalities) and the Xinjiang Production and Construction Corps reported 337 new confirmed cases, including 233 local cases; 399 new asymptomatic infections, of which local 322 cases.

Only the local confirmed and asymptomatic infections reported on the 8th have involved 19 provinces.

  Among them, Jilin Province added 94 local confirmed cases, including 73 cases in Jilin City, 12 cases in Changchun City, and 9 cases in Yanbian Prefecture; 80 new cases of local asymptomatic infections were added in the province.

  3 new local confirmed cases of new coronary pneumonia in Shanghai.

There were 62 new cases of local asymptomatic infections.

  Shandong Province reported 61 new confirmed cases, including 59 local confirmed cases (55 in Qingdao, 1 in Zibo, 1 in Weihai, and 2 in Rizhao); 108 new asymptomatic infections were reported, and they were local asymptomatic infections. 106 cases (including 93 in Qingdao and 13 in Weihai) and 2 imported asymptomatic infections.

  Since the 6th, for three consecutive days, the cumulative number of newly confirmed local cases in 31 provinces has exceeded 500, and the number of new local asymptomatic infections has approached 1,000.

  According to the client applet of the State Council, as of 12:00 on March 9, there were 9 high-risk areas and 146 medium-risk areas in the country.

The picture shows people queuing for nucleic acid testing in a community in Qujiang New District, Xi'an.

Photo by Zhang Yichen

Asymptomatic infections are more frequently reported Omicron variant

  Recently, the epidemic has spread in many places in China, and it is difficult to prevent and control the epidemic in various places. The epidemics reported in many places are all mutants of Omicron.

In addition, the most obvious feature of this round of epidemic is the large number of asymptomatic infections.

  Taking March 8 as an example, there were 3 new local confirmed cases and 62 asymptomatic infections in Shanghai.

Shandong Province added 59 new local confirmed cases and 106 asymptomatic infections.

There were 4 new local confirmed cases and 24 asymptomatic infections in Yunnan Province.

  Why is there a large proportion of asymptomatic infections in this round of epidemic?

Jiang Fachun, deputy director of the Qingdao Center for Disease Control and Prevention, gave an answer to the local epidemic situation:

  It is related to the characteristics of the Omicron variant.

With the mutation of the virus, the infectivity of the mutant strain is enhanced, and the clinical symptoms are relatively mild, which will cause many infected people to not show clinical symptoms after infection.

  associated with mass population immunization.

Now the vaccination coverage rate is high, and the human body's immunity is enhanced after vaccination. Even if infected, some symptoms may not appear relatively.

  Related to early detection and control.

The rapid screening and detection of disease control personnel and the early implementation of these measures have enabled some early infected persons to be found quickly, and they were detected before they had symptoms.

Data map: Medical staff vaccinate students against the new crown.

Photo by Yang Huafeng

Expert: Adhere to the policy of "dynamic clearing" unswervingly

  In the past few days, the epidemic situation has spread in various places, involving a wide range, and the number of infected people is large, and the epidemic prevention and control is facing challenges.

  Zhang Wenhong, director of the National Medical Center for Infectious Diseases and director of the Department of Infectious Diseases of Huashan Hospital Affiliated to Fudan University, recently posted on Weibo that as the anti-epidemic entered the deep water area, the strategy of "dynamic clearing" has been more clearly implemented.

The so-called "dynamic" connotation shows more governance wisdom and diversity. It is necessary to avoid one-size-fits-all, and no "large-scale epidemic rebound" out of control.

  Zhang Boli, an academician of the Chinese Academy of Engineering, said that with the spread of overseas epidemics, it is difficult to accurately predict the mutation trend of the new coronavirus, and it should not be taken lightly for a long time in the future.

We must adhere to the policy of precise prevention and control and dynamic clearing.

  He mentioned that dynamic clearing is not "absolute clearing". It is necessary to adhere to the various measures of normalized epidemic prevention and control, implement them in detail, and work on scientific precision, and do not overweight.

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