Recently, with the approval of the joint prevention and control mechanism of the State Council, the National Health Commission began to deploy the new crown vaccine to strengthen immunization in a sequential manner. What vaccines can be used for sequential booster immunization? What is the current safety and efficacy of the mainland's COVID-19 vaccine sequential immunity? What should I pay attention to if I want to carry out a sequential booster of immunization? In the face of these issues of public concern, experts give important tips.
Which vaccines can be used for sequential booster immunization?
At the press conference of the joint prevention and control mechanism of the State Council held on February 19, Wu Liangyou, deputy director of the Disease Control Bureau of the National Health Commission, introduced 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.
For which vaccines can be administered sequentially to boost immunization? Wu Liangyou introduced that previously, the target population over 18 years old who had been vaccinated with the inactivated vaccine of Sinopharm Zhongsheng Beijing Company, Wuhan Company, Beijing Kexing Company, and the adenovirus vector vaccine of Tianjin Kangxino Company for 6 months could be strengthened by a dose of homologous enhancement, 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.
Wu Liangyou also reminded everyone that homologous enhanced immunization and sequential enhanced immunization can be selected. Whether it is homologous enhancement or sequential strengthening, it is implemented in people over 18 years old who have completed the full vaccination for 6 months.
What is the current safety and efficacy of the mainland's COVID-19 vaccine sequential immunity?
For the safety and effectiveness of vaccines to strengthen immunization, Shao Yiming, a member of the expert group of the vaccine research and development special class of the scientific research group of the joint prevention and control mechanism of the State Council, said at the press conference that the epidemic situation analysis data in many places in China shows that for the Delta strain, the mainland new crown vaccine has a certain effect on preventing infection and re-transmission, and has a significant effect on the prevention of pneumonia and severe disease.
For the Olmikron strain, Shao Yiming also said that the new crown vaccine in the mainland can reduce the risk of pneumonia, which in turn can reduce the incidence of severe illness and death. "The enhanced immunization of our country's NEW CROWN vaccine has an inhibitory effect on the breakthrough infection of the Aumi kerong strain, which can reduce the retransmission ability of the Omiljung. Therefore, our vaccine is also effective against Aumechjong, and the effect of strengthening immunity is more prominent. ”
What should I pay attention to if I want to carry out a sequential booster of immunization?
At the press conference, Wang Huaqing, chief expert of the immunization program of the Chinese Center for Disease Control and Prevention, said that there are some special precautions for sequential vaccination, mainly including the following four aspects:
In addition to the above four special precautions, Wang Huaqing also reminded everyone that the sequential strengthening of immunization, as in the past we have the same precautions for vaccination against the new crown vaccine, including understanding the relevant provisions of local vaccination before vaccination, personal protection should be done during vaccination, their health status should be truthfully reflected to the vaccination doctor, they should stay for 30 minutes after vaccination, and when adverse reactions related to vaccination are suspected, such as a long duration and serious symptoms, they should report to the vaccination unit and seek medical treatment in time. (Text/poster design: Wang Ying combs according to the content of the press conference of the joint prevention and control mechanism of the State Council)