Is Xinxiang New Crown Vaccine Sequential Booster Immunization Safe? Xinxiang City New Crown Vaccine Booster Shot

Is sequential boosting of immunity safe?

According to clinical research and actual use experience, Anhui Zhifeilong Koma Company’s recombinant protein vaccine and Tianjin CanSino Company’s adenovirus vector vaccine Security is good.

Research on the sequential vaccination of the Zhifeilong Kema recombinant new coronavirus vaccine shows that the sequential boost of the Zhifei Long Kema recombinant new coronavirus vaccine induces a higher level of protection against Austria than the homologous boost of the inactivated vaccine. Mixon humoral immune response. After 14 days of sequential boosting, the positive rate of serum Omicron neutralizing antibodies reached 100.

The advantages of sequential booster immunization using adenoviral vector vaccines have been confirmed in multiple clinical studies. Among them, multiple cooperative units including the Key Laboratory of Pathogen Microorganisms and Immunology of the Chinese Academy of Sciences and the Institute of Microbiology of the Chinese Academy of Sciences jointly published the latest sequential enhanced research results. The data shows that among subjects who have completed 2 doses of inactivated vaccine for 4-8 months, the new coronavirus vaccine with different technical routes was used for homologous or sequential boosting, showing that the use of adenovirus vector new coronavirus vaccine to boost immunity has a positive effect on Omicron. The neutralizing antibody level of the strain was 6 times that of the homologous boost of the inactivated vaccine and 3 times that of the sequential boost of the recombinant protein vaccine. In addition to significantly enhancing the level of neutralizing antibodies, boosting immunization with adenovirus vector vaccine can also effectively induce CD8 T cell immune responses, which can quickly kill virus-infected cells, significantly reduce the incidence of severe illness and death, and provide humoral immunity for the human body. and dual protection of cellular immunity.