Antigen structure of traditional inactivated vaccine

Another inactivated vaccine from COVID-19 was marketed in China, and 2 doses were inoculated in the whole process.

On June 9th, the first batch of inactivated vaccine of Keweifu novel coronavirus independently developed by Institute of Medical Biology, China Academy of Medical Sciences was listed in China for emergency use.

Phase I/II clinical results show that the vaccine has good safety and immunogenicity, and can quickly induce the immune response of the system after inoculation. The positive conversion rates of neutralizing antibody and anti-S protein antibody reached 96% and 99.33% respectively, which can effectively provide protection.

The immune procedure of COVID-19 inactivated vaccine developed by Institute of Biology, China Academy of Medical Sciences is the same as that of similar vaccines. Two doses were inoculated during the whole process, and the interval between each dose was 2-4 weeks. At present, the vaccination age is1population aged 8 years and above.

Types of vaccines in COVID-19

There are three different types of COVID-19 vaccines being used in China: one, two and three. Characteristics of three vaccines:

Only one injection is an adenovirus vector vaccine. Generally speaking, adenovirus, like a truck, can carry COVID-19 nucleic acid fragments, which can be efficiently transported to cells to express antigens, and one injection can induce immune protection response.

What needs two shots is inactivated vaccine, which is the traditional vaccine that everyone is familiar with. It inactivates the live virus and inoculates it into the human body as an antigen. The composition of the vaccine is closest to the natural virus structure.

What needs three shots is recombinant protein vaccine, which is to make the most effective antigen component into vaccine through genetic engineering. Although these three vaccines are of different types, they are all safe and effective.

Refer to the above? Economic Observer Network-Another inactivated COVID-19 vaccine is listed in China.