On the 8th, 31 provinces reported a new number of confirmed cases. At present, the number of new 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 in Dabei Subdistrict, Dadong District, Shenyang City, underwent nucleic acid testing. China News Service reporter Yu Haiyang photographed
The outbreak was sporadic in many places
In the past three days, more than 500 new cases of indigenous infections have been added every day
According to the National Health Commission, on March 8, 31 provinces (autonomous regions and municipalities directly under the Central Government) and the Xinjiang Production and Construction Corps reported 337 new confirmed cases, including 233 local cases; 399 new asymptomatic infected people, including 322 local cases. The indigenous confirmed and asymptomatic infected people reported on the 8th alone have involved 19 provinces.
Among them, there were 94 new locally confirmed cases in Jilin Province, including 73 cases in Jilin City, 12 cases in Changchun City, and 9 cases in Yanbian Prefecture; and 80 new local asymptomatic infected people in the province.
There were 3 new confirmed cases of covid-19 in Shanghai. There were 62 new cases of indigenous asymptomatic infection.
Shandong Province reported 61 new confirmed cases, including 59 locally confirmed cases (55 cases in Qingdao, 1 case in Zibo, 1 case in Weihai, and 2 cases in Rizhao); 108 new cases of asymptomatic infection, namely 106 cases of local asymptomatic infection (including 93 cases in Qingdao and 13 cases in Weihai) and 2 cases of asymptomatic infection imported from abroad.
Since the 6th, for three consecutive days, the cumulative number of new local confirmed cases in 31 provinces has exceeded 500, and the number of new local asymptomatic infected people has approached 1,000.
The picture shows a small area in Xi'an Qujiang New District, where people are queuing up for nucleic acid testing. Photo by Zhang Yichen
Asymptomatic infections are more common
The Aomi Kerong variant has been reported in many places
Recently, the epidemic situation in many parts of the country has been sporadic, and the epidemic prevention and control in various places is more difficult, and the epidemic situation reported in many places is the Aomi Kerong mutation. In addition, the most obvious feature of this round of outbreaks is the large number of asymptomatic infected people.
Taking March 8 as an example, there were 3 new locally confirmed cases and 62 asymptomatic infected people in Shanghai. In Shandong Province, there were 59 new locally confirmed cases and 106 asymptomatic infected people. In Yunnan Province, there were 4 new locally confirmed cases and 24 asymptomatic infected people.
Why do asymptomatic infected people in this round of the epidemic account for a relatively large proportion? Jiang Fachun, deputy director of the Qingdao Municipal Center for Disease Control and Prevention, gave an answer to the local epidemic situation:
It is related to the characteristics of the Aumechjong mutant strain itself. With the mutation of the virus, the infectivity of the mutant strain increases, 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 is high, the body's immunity is enhanced after vaccination, even if infected, relatively speaking, some symptoms may not be expressed.
It is related to early detection and control. Rapid screening and rapid detection by disease control personnel, these measures were implemented early, so that some early infected people were quickly discovered and detected before they had time to show symptoms.
Infographic: Healthcare workers vaccinate students against COVID-19. Photo by Yang Huafeng
Experts: Adhere to the "dynamic zero clearance" policy without wavering
In recent days, the epidemic situation in various places has been sporadic, involving a wide range, the number of infected people is large, and the epidemic prevention and control has faced challenges.
Zhang Wenhong, director of the National Center for Infectious Disease Medicine and director of the Department of Infectious Diseases of Huashan Hospital affiliated to Fudan University, recently posted on Weibo that as the fight against the epidemic enters the deep water area, the strategy of "dynamic zero clearance" has been more clearly implemented. The connotation of the so-called "dynamic" shows more governance wisdom and diversity, not only to avoid one-size-fits-all, but also not to have a "large-scale epidemic rebound" out of control.
Zhang Boli, an academician of the Chinese Academy of Engineering, said that the spread of the epidemic overseas and the mutation trend of the new crown virus are still difficult to accurately predict, and it is still not possible to take it lightly for a long time to come. We must adhere to the policy of precise prevention and control and dynamic zero clearance.
He mentioned that dynamic zeroing is not absolute zeroing, and it is necessary to adhere to the various measures of normalization of epidemic prevention and control, implement them in detail, work scientific precision, and do not increase the number of layers.
Source: China News Network