At 0-24:00 on February 19, 31 provinces (autonomous regions and municipalities directly under the Central Government) and the Xinjiang Production and Construction Corps reported 195 new confirmed cases. Among them, there were 94 imported cases (32 cases in Guangdong, 23 cases in Shanghai, 13 cases in Jiangsu, 6 cases in Beijing, 4 cases in Fujian, 3 cases in Zhejiang, 3 cases in Shandong, 3 cases in Gansu, 2 cases in Guangxi, 2 cases in Sichuan, 1 case in Tianjin, 1 case in Liaoning, and 1 case in Hubei), including 3 cases from asymptomatic infected people to confirmed cases (2 cases in Guangdong and 1 case in Sichuan); 101 cases in local cases (65 cases in Inner Mongolia, including 63 cases in Hohhot City and 2 cases in Baotou City; 16 cases in Jiangsu, all in Suzhou City; 9 cases in Liaoning, all in Huludao City). 8 cases in Guangdong, all in Shenzhen City, and 3 cases in Yunnan, all in Honghe Hani and Yi Autonomous Prefecture). There were no new deaths. There were no new suspected cases.
31 provinces (autonomous regions and municipalities directly under the Central Government) and the Xinjiang Production and Construction Corps reported 39 new cases of asymptomatic infection, of which 35 cases were imported from abroad and 4 cases were local (2 cases in Sichuan, both in Luzhou City; 1 case in Inner Mongolia, in Baotou City; 1 case in Hainan, in Chengmai County); 3 cases were converted to confirmed cases on the same day (all imported from abroad); 43 cases were released from medical observation on the same day (42 cases imported from abroad); and 687 asymptomatic infected people were still under medical observation (582 cases imported from abroad).
△ On February 19, a citizen of Hohhot, Inner Mongolia
Queue up for nucleic acid testing
Afternoon of February 19
The joint prevention and control mechanism of the State Council held a press conference
Introduce the latest situation of the current round of epidemics in various places
As of February 18, a total of 3,075,752,000 doses of covid-19 vaccine had been reported nationwide, and the number of people who had completed the full vaccination was 1,232,543,000.
Recently, with the approval of the joint prevention and control mechanism of the State Council, the National Health Commission has begun to deploy a sequential strengthening of immunization.
Local clusters of outbreaks are still occurring, and the risk of spread persists with the return of the holiday and the resumption of work and production.
The joint prevention and control mechanism of the State Council has dispatched working groups to deal with clusters of epidemics in Liaoning, Inner Mongolia, Guangdong and other places.
The latest research and judgment of the epidemic situation in 12 places:
The epidemic situation in Guangxi Baise is in the stage of closing and clearing;
The new cases of the epidemic in Huludao, Liaoning Province, have been found mainly through centralized isolation and screening, the epidemic trend is good, and the risk of social transmission has been basically controlled;
At present, the epidemic situation in Heihe, Heilongjiang is mainly concentrated in Heihe City, there are multiple transmission chains, and further traceability and case investigation are being carried out in an orderly manner;
Guangdong's Shenzhen, Zhuhai and Dongguan have recently detected clusters of outbreaks caused by imports from abroad. The epidemic situation in Shenzhen Aomi Kerong has been basically controlled, and the epidemic situation in Dongguan and Zhuhai is strengthening the traceability of circulation;
In Wenshan, Honghe and Ruili, Yunnan, the source of infection is still unknown, and the local government is making every effort to accelerate nucleic acid screening in key areas;
The genetic sequencing results of the epidemic in Suzhou, Jiangsu Province, are the Aomi Kerong mutant strain, which is a local epidemic caused by a new overseas import source, which is still in a stage of rapid development, and the local government is accelerating the traceability of circulation;
The genetic sequencing results of the epidemic in Hohhot, Inner Mongolia, are Delta variants, and a local epidemic caused by a new overseas import source has spread to Baotou City. At present, the epidemic is in the early stages, the number of cases is growing rapidly, and there is a cluster of epidemics in crowded places such as units and wedding banquets, and there is a high risk of community transmission and spillover.
National Health Commission:
The mainland has initiated a sequential strengthening of immunization in key areas
At a press conference held by the joint prevention and control mechanism of the State Council, Wu Liangyou, deputy director of the Disease Control Bureau of the National Health Commission, said that recently, with the approval of the joint prevention and control mechanism of the State Council, the National Health Commission has begun to deploy a sequence to strengthen immunization.
Wang Huaqing, chief expert of the immunization program of the Chinese Center for Disease Control and Prevention, introduced that sequential immunization is a vaccination strategy adopted by using vaccines with different technical routes or different anti-prototype vaccines, according to certain intervals and doses, hoping to obtain better preventive effects and safety. Sequential immunization is a process of continuous improvement of immune strategies and a decision based on scientific evidence.
Previously, target groups over the age of 18 who had been vaccinated with Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company, Sinopharm Zhongsheng Wuhan Company inactivated vaccine or Tianjin CanSino Company's adenovirus vector vaccine for 6 months could be given a dose of homologous enhanced immunization, that is, strengthened with the original vaccine. After the implementation of the sequential enhanced immunization strategy, the target population who has completed the full vaccination of the above three inactivated vaccines can also choose the recombinant protein vaccine of Zhifeilong Koma or the adenovirus vector vaccine of Cansino for sequential enhanced immunization. For the target population, homologous booster immunization and sequential booster immunization can be selected. In addition, the joint prevention and control mechanism of the State Council also approved the homologous enhanced immunization of the new coronavirus inactivated vaccine of Shenzhen Kangtai Company and the Institute of Biology of the Medical Academy. Whether it is homologous enhancement or sequential strengthening, it needs to be implemented in people over 18 years of age who have completed the full vaccination for 6 months.
The research data shows that homologous enhanced immunization and sequential enhanced immunization can further improve the immunization effect, and people who hope to meet the vaccination conditions can take the initiative to vaccinate and vaccinate early, increase health and fuel epidemic prevention.
What is Sequential Booster Immunization?
Sequential booster immunization refers to the selection of a COVID-19 vaccine that is different from the inactivation technology route when strengthening immunization. Previously, the mainland has been implementing a homologous vaccination strategy to strengthen immunization, that is, the booster needle must choose the same technical route of the new crown vaccine for vaccination.
Sequential booster immunization means that boosters can choose between recombinant protein vaccines and adenovirus vector vaccines. Wu Liangyou said that after the implementation of the sequential strengthening immunization strategy, the target population of the inactivated vaccine of Sinopharm Zhongsheng Beijing Company, Wuhan Company and Beijing Kexing Company can be completed, and the recombinant protein vaccine of Zhifeilong Koma or the adenovirus vector vaccine of CanSino can be selected for sequential enhancement of immunization.
Who is eligible for vaccination?
Wang Huaqing, chief expert of the immunization program of the Chinese Center for Disease Control and Prevention, introduced that there are some special precautions for sequential vaccination.
About the objects of sequential immunization:
The first is people over the age of 18.
The second is to complete 2 doses of inactivated vaccination, and these 2 doses are the inactivated vaccine of the new crown virus in China National Medicine Zhongsheng Beijing Company, Beijing Kexing Company, and Sinopharm Zhongsheng Wuhan Company.
The third is to complete 2 doses of vaccination in the whole process, and the interval between vaccinations cannot be less than 6 months.
The fourth is that there is no enhanced immunization, that is, the 3rd injection is not shot, so several conditions should be strictly grasped.
In addition, as with the precautions for receiving the new crown vaccine in the past, including understanding the relevant regulations of local vaccination before vaccination, because it is still the epidemic period, in this process, when everyone goes to the vaccination, they must do a good job of personal protection, including when they are vaccinated, they must truthfully reflect their health status to the vaccination doctor, and the vaccination doctor will judge whether there are contraindications or some delayed situations.
Finally, after vaccination, it is necessary to stay for 30 minutes, and when there is a suspected adverse reaction related to vaccination, if the duration is longer and the symptoms are more serious, one is to report to the vaccination unit, and the other is to seek medical treatment in time.
Why sequential immunization?
Before the enhancement of the needle needed to be consistent with the previous vaccine technology route, now it can be different, why is this?
Shao Yiming, a member of the vaccine research and development expert group of the scientific research group of the joint prevention and control mechanism of the State Council, said that according to the previous experience in the prevention and control of infectious diseases, a single vaccine can deal with conventional viruses, but for the cunning viruses that are good at mutation, different vaccines can be implemented "joint operations".
"Sequential immunity has two advantages." Shao Yiming explained: First, different vaccines can complement each other's advantages, and the other is that for some people, side reactions can be reduced, due to different human physiques, people who may have side reactions to a certain vaccine are heavier, and they can be transformed by vaccines to reduce the occurrence of side reactions.
In response to the Omilon, there is a greater need for enhanced immunization
Omikeron has become a mainstream strain of the global epidemic. Wu Liangyou said that at present, the Aumechjong variant strain has become the dominant strain of imported and local epidemics outside the mainland, its transmission force is stronger, the transmission speed is faster, and the risk of overseas imported epidemics and local epidemics in the mainland has increased significantly.
In response to the coronavirus mutation, the World Health Organization supports flexible homologous vaccines and heterologous vaccination programmes. Wang Huaqing introduced that based on the research evidence, some countries in the Americas, Europe and Southeast Asia have begun to implement a sequential strengthening of immunization.
"The research data shows that homologous enhanced immunization and sequential enhanced immunization can further improve the immunization effect, and people who hope to meet the vaccination conditions can take the initiative to vaccinate and vaccinate early." Wu Liangyou said.
Source: Oriental Network Synthesis
Edit: Xiao Liu
Reviewer: Bian Yinghao