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| What is the difference between the "one shot, two shots, and three shots" of the new crown vaccine? The authoritative answer is here |
Shao Yiming, a researcher of the Chinese Center for Disease Control and Prevention, introduced at a press conference on the Joint Prevention and Control Mechanism of the State Council on the 31st that the new coronavirus vaccines currently used in China are divided into three types: inactivated vaccines, adenovirus vector vaccines and recombinant protein vaccines.
State Council
Inactivated vaccines in my country are prepared by first expanding the new coronavirus in cell culture, then inactivating and verifying, and finally purifying and extracting.
The adenovirus vector vaccine in my country is to introduce the new coronavirus S protein into a type 5 adenovirus vector.
Recombinant protein vaccines in my country use genetic engineering technology to construct engineered cells expressing virus S protein or its receptor binding epitope, and then extract and purify the protein to make vaccines after culturing a large number of cells.
Shao Yiming said that the three technical routes of vaccines are safe, effective and quality controllable vaccines.
The public must complete all injections of various vaccines in accordance with the instructions, and must not give up halfway, in order to achieve the set vaccine protection effect, that is, to achieve the first, second, and third level of prevention of new coronavirus infection, disease and spread to others.
(CCTV reporter Shi Yingchun and Gu Xiaoci)
Focus on the new crown pneumonia epidemic
