COVID-19 strengthens the focus on which is better, COVID-19 COVID-19 Bio vaccine

Whether COVID-19 Vaccine is better than COVID-19 Vaccine, people who have been vaccinated or are going to fight should know that there are two kinds of vaccines, Beijing Biological Vaccine and Kexing Biological Vaccine. What's the difference between the two vaccines? Next, let's let Xiaobian take you to see the relevant news about Xinguan Vaccine, Beijing Biological Vaccine and Kexing Biological Vaccine. I hope you can find the answer after reading it.