The vaccine was developed and produced by Beijing Kexing Zhongwei Biotechnology Co., Ltd. Recently, there have been many discussions about the adverse reactions of Kexing vaccine, but we don't have to worry too much about vaccination. At present, several COVID-19 vaccines vaccinated in China are completely safe and recognized by international organizations.

Beijing Kexing is the parent company, and Kexing Zhongwei is Sun Company. 3. The effective rates of vaccines are different: the protective rate of vaccines produced by Kexing Zhongwei for diseases caused by COVID-19 infection is 100%, and that of vaccines produced by Beijing Kexing for diseases caused by COVID-19 infection is 79.34%.