Dalian Kexing is the same as Beijing Kexing. Because the vaccines of the two companies are inactivated vaccines, they can be mixed. The main difference is that the manufacturers are different. Beijing biological vaccine manufacturer is China Sinopharm Group, and Kexing vaccine manufacturer is Beijing Kexing Zhongwei Biotechnology Co., Ltd.

Dalian Kexing Bio is just a vaccine sub-packaging enterprise under Beijing Kexing Bio, using the same technology, but the sub-packaging enterprises are different. COVID-19 vaccines from Dalian Kexing and Beijing Kexing Zhongwei are inactivated vaccines.

It has the advantages of Dalian Kexing and Beijing Kexing.

The vaccine stock solution of Dalian Kexing is produced by Beijing Kexing Zhongwei and packaged separately in Dalian Kexing. There is no difference. This production mode is to solve the problem of insufficient vaccine production capacity in COVID-19. At the same time, the vaccine produced has been tested by relevant state departments before it can be put on the market.