Which company is the third dose of COVID-19 vaccine? Which is better, three doses or two doses of COVID-19 vaccine

Which company is responsible for the three dose vaccine? The current situation of the epidemic is still worrying. Most of us can only get vaccinated, take self-protection measures, and reduce mobility. Some people may not be familiar with the current three dose vaccine. Next, let me take you to see the relevant news about which company is responsible for the three dose vaccine. I hope that after reading this, everyone can find the answer.

Which company

is the three doses of vaccine? The recombinant COVID-19 vaccine (CHO cell) currently used by SEP is jointly developed by the Institute of Microbiology, Chinese Academy of Sciences and Anhui Zhifeilong Kema Biological Pharmaceutical Co., Ltd. The full name of CHO cells is Chinese hamster ovary cells, which have wide applications in the field of biotechnology and are the preferred cells for producing protein drugs. In addition to the previous inactivated vaccine and adenovirus vector vaccine, the recombinant protein vaccine is the landing of the third COVID-19 vaccine technology route in China and the first recombinant protein vaccine approved for mass vaccination in the world, so it can be said to be of great significance. The principle of recombinant protein vaccine is that it only contains the virus antigen protein RBD (receptor binding region) protein, which is prepared by DNA recombination technology. After inoculation, it can stimulate the body to generate immunity against COVID-19, which is used to prevent diseases caused by COVID-19 infection.

Recombinant protein vaccines are prepared by expressing and purifying pathogen antigen proteins in engineered cells through genetic engineering. Different from the adenovirus vector vaccine and inactivated vaccine previously approved for clinical trials, this is a COVID-19 vaccine developed by a new technical route. The vaccine was developed by the Gao Fu team and Yan Jinghua team from the Institute of Microbiology, Chinese Academy of Sciences. After the COVID-19 in 2020, Anhui Zhifeilong Kema took rapid action to start the research and development of COVID-19 vaccine by taking advantage of its own accumulation and advantages in the field of vaccine research and development for more than 10 years, becoming the only enterprise in Anhui Province to research and develop COVID-19 vaccine, and obtaining the support of the Ministry of Science and Technology's key special project "public security risk prevention and control and emergency technical equipment".

Which is better, three doses or two doses of COVID-19 vaccine?

At present, several COVID-19 vaccines on the market in China have been reviewed and approved by the drug regulatory department, and their safety and effectiveness are guaranteed, so they can be safely vaccinated. In addition, there are three domestic routes (including single shot) of COVID-19 vaccine that have their own characteristics. No matter what technical route is adopted, the most important thing is to combine the characteristics of the antigen itself, the characteristics of the pathogen itself, and use appropriate processes to develop a safe, effective and quality controlled vaccine, which is the key criteria for the success of the vaccine. Due to the different technical routes used for the 1-dose, 2-dose, and 3-dose vaccines, the corresponding vaccination procedures were determined based on the results of clinical trials. These three vaccines have been approved by the national drug regulatory authorities for conditional marketing or emergency use, and all have good immunogenicity and safety. Considering the existing epidemic prevention needs, as long as it is for the purpose of disease prevention, these three vaccines are acceptable for non contraindication populations.

The above information is about which company is the three shot vaccine and which is good for the three shot and two shot COVID-19 vaccine. I hope it can help you understand the relevant information. If you want to get more information, please pay attention!

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