Which country does bnt COVID-19 vaccine come from?
Bnt COVID-19 Vaccine, also known as Pfizer-Biotechnology Vaccine, is jointly developed by two biopharmaceutical companies, Pfizer of the United States and German Biotechnology Company.
BioNTech has been developing mRNA vaccines for many years and has worked with Pfizer for many years before. Previously, the main cooperation direction was an influenza mRNA vaccine. After learning about BioNTech's research and development progress in COVID-19 vaccine, Pfizer quickly reached an agreement with BioNTech to pay for BioNTech's research and development expenses, clinical trials and subsequent production and transportation expenses. On the other hand, despite the reminders of colleagues, Dr. Shaheen sent the vaccine data to Pfizer's headquarters in new york before the formal contract was signed.
It is reported that the effective rate of the vaccine is 95%, and the effective rate of people over 56 years old is 94%. There is no difference in the effective rate among different age groups, sexes and nationalities.
In terms of safety, no serious adverse events occurred. When the incidence rate was over 2%, the common adverse reactions above grade 3 requiring medical treatment were fatigue (3.8%) and fever (2%), which were relieved in a short time.
Which is better, bnt COVID-19 vaccine or Kexing?
From the technical route, it belongs to COVID-19 vaccine with mRNA technology. According to public information, German biotechnology company is a well-known pharmaceutical company in Germany. Shanghai Fosun Pharma Group has obtained the agency right of this COVID-19 vaccine in Greater China.
It is reported that Fubitai new crown vaccine is mRNA COVID-19 vaccine, and the protection rate is as high as 95%. According to reports, the mRNA COVID-19 vaccine has two major advantages: 1, which will not bring the risk of infection or mutation; 2. In terms of effectiveness, there are many modification methods that can make mRNA more stable and translation efficiency higher; At the same time, the development of delivery mode can make mRNA delivered to cells quickly.
COVID-19 vaccine of Kexing Company belongs to inactivated vaccine. According to experts from the Turkish Scientific Committee, the effective rate of the third phase clinical trial of COVID-19 vaccine of Kexing Company was 83.5%, the critical protection rate was 1 1,000%, and there were no side effects.
What is the most famous COVID-19 vaccine at present?
1, Kexing vaccine. This is China's COVID-19 vaccine, and its effective rate is very high, up to 94%. The data show that the inactivated vaccine technology produced by Kexing Bio is relatively traditional and more mature. After vaccination with inactivated COVID-19 vaccine, the human body can maintain immunity for more than 6 months.
2. Pfizer vaccine. It is understood that the effective rate of COVID-19 vaccine is as high as 95%, which is very powerful. According to the data, this is the first COVID-19 vaccine authorized urgently in the United States, and it has also been approved in many other countries. However, the safety of vaccines has also been questioned by many people, because there have been many cases of death after vaccination.
3. Chinese medicine vaccine. The inactivated vaccine produced by Sinopharm Group has the same price and preservation conditions as the vaccine produced by Kexing Bio, and the effective rate is over 90%. The storage conditions of inactivated vaccine are much looser than that of nucleic acid vaccine, and it only needs to be stored at 2-8 degrees Celsius. American vaccine has many side effects, while Chinese medicine COVID-19 vaccine has high safety and few side effects.
4. AstraZeneca vaccine. The highest effective rate of this vaccine is 90%, and the lowest effective rate is 60%. It is too big to be at ease. So far, Britain, India and several other countries have authorized this kind of injection. The vaccine is cheap and easy to store, which makes people hope that it can protect most parts of the world.