What are the differences between the four new coronavirus vaccines that have been on the market?

China News Service, March 15th.

Wang Junzhi said that these four new crown vaccines are actually two technical routes.

Wang Junzhi introduced that adenovirus vector vaccines, my country adopts type 5 adenovirus as a vector, introduces new coronavirus antigen genes, and prepares a live vector vaccine through a bioreactor.

Wang Junzhi pointed out that no matter what kind of technical route the new crown vaccine adopts, the most important thing is to combine the characteristics of the antigen itself and the characteristics of the pathogen itself, and use suitable technology to develop a safe, effective, and controllable quality vaccine.

Another reporter at the meeting asked questions about the progress in the development of other vaccines except for the four vaccines that have been approved for marketing.

In response, Wang Junzhi said that currently 17 new crown vaccines in our country have entered the clinical stage, 4 of which have been conditionally approved, and the other three technical routes are basically in Phase III clinical or immediately enter Phase III clinical phase.

"Once enough data is obtained to prove that the effectiveness of the program design is met and the data is acceptable, the applicant can submit a marketing application to the State Food and Drug Administration, and the State Food and Drug Administration will organize it in the first time.