Share the QR code < / P > < p > with wechat scanning code to friends and circles of friends < / P > < p > < / P > < p > recently, China's first mRNA new crown vaccine production workshop was built and delivered in the vaccine Industrial Park of Yuxi high tech Zone < p > < / P > < p > mRNA new crown vaccine is jointly developed by the Military Medical Research Institute of the Academy of Military Sciences, Suzhou Aibo Biotechnology Co., Ltd. and Yunnan Watson Biotechnology Co., Ltd. Yuxi Watson Biotechnology Co., Ltd. is responsible for the construction of the base. The base has a total investment of 520 million yuan and is expected to produce 200 million doses of vaccine every year. It is the first industrialization base of mRNA new crown vaccine in China < p > mRNA is a natural molecule that provides instructions for human cells, stimulates human immunity, produces antigens and fights against corresponding diseases. The mRNA gene encoding s protein is directly injected into the human body, and human cells are used to synthesize s protein in the human body to stimulate the human body to produce antibodies. Generally speaking, it is equivalent to giving a detailed virus file to the human immune system < p > mRNA vaccine is the vaccine with the highest protection rate (95%) according to the results of phase III clinical trials published in the world. At the same time, its R & D technology threshold is high. At present, only a few mRNA vaccine varieties developed in the United States and Germany have entered the clinical research stage. Compared with mRNA vaccines developed abroad, domestic mRNA vaccines have three advantages < p > first, the vaccine is safer. The vaccine antigen target used in China is more accurate, and the neutralizing antibody produced by induction has high specificity < p > Second, the level of localization is high. All the core raw materials and equipment of mRNA vaccine in China have been localized, which means that once the production approval is obtained, the production capacity can be rapidly expanded to meet the supply < p > Third, the storage cost is lower. In China, a single pre filled injection is used, which can be stored at room temperature for one week or at 4 ℃ for a long time. The cold chain cost is low, and it is easy to realize mass vaccination < p > at present, in addition to the smooth progress of mRNA vaccine research and development, China's recombinant vaccine based on traditional technology has been in the forefront of the world. According to statistics, up to now, five vaccine projects in China have entered phase III clinical trials, and vaccination has been started in more than ten countries, and there are no reports of serious adverse reactions

source: WeChat official account, "Cloud View news seven color cloud"

extended reading:

new research: some people have gained "superhuman" mixed immunity to resist all kinds of variants

source:   Red Star News < / P > < p > < / P > < p > ↑ someone already has "superhuman" new crown immunity < / P > < p > "superhuman" mixed immunity was born < / P > < p > mixed exposed people can resist various new crown variants < / P > < p > how did this mixed immunity come from? It is reported that those people first infected COVID-19 in 2020, and then they were vaccinated. After being exposed to the virus in a mixed way, they finally got superhuman immunity. p> < p > the study found that people exposed through this "mixed" type can produce a high level of antibodies. At the same time, their antibodies also have great elasticity, and can resist various new crown variants popular all over the world, including delta, coronavirus in animals, and even new crown variants used for testing in the laboratory. Therefore, scientists call it "superhuman immunity" < p > virologist Paul binias of Rockefeller University in the United States said: "you can reasonably speculate that people will be able to resist most or even all of the new crown variants we may face in the foreseeable future." < / P > < p > Paul binias and colleagues studied and compared the antibodies of 15 people who had been mixed exposed with those who had only been vaccinated or naturally infected. The results showed that the antibodies in the mixed exposed human body could strongly neutralize the six new crown variants tested, including delta and beta; It also resists several viruses related to COVID-19, such as SARS. Theo,

, a virus researcher who is attached to a COVID-19

on p>

antibody, points out: "the antibodies in these blood cells can even neutralize SARS (SARS-CoV-1). It appeared 20 years ago, which is very different from COVID-19 (SARS-CoV-2)". (Theodora) < / P > < p > their antibodies can even deal with coronaviruses in animals, including one coronavirus in bats and two coronaviruses in pangolins. As a result, "they even have some degree of protection against SARS like viruses that have not yet been infected with human beings," he said. "These antibodies in COVID-19, which are specially designed for testing, are also highly resistant to COVID-19. This variant contains 20 variants in order to avoid antibody binding. Antibodies in people who have only been vaccinated or have only been infected are "useless" in the face of it, but antibodies with "mixed immunity" can combine them

is being studied by the

universal coronavirus vaccine.

will take effect in all the future varieties,

explains that antibodies in human body have evolved after natural infection, and become more and more powerful. However, the immunity obtained by natural infection is different from that obtained by vaccination. Previous studies have found that the human body's natural immunity will be maintained for 7 or 8 months. After about a year, it can only preserve part of the "memory" of the virus, so it is more vulnerable to the invasion of variants. However, if patients are vaccinated after recovering from infection with the new crown, the "memory" of their immune system will be strengthened. Moreover, the "new infection" caused by this vaccine will make the immune system regard it as a serious threat, thus activating more resources to launch stronger resistance

Paul bibias pointed out: "according to all these findings, it seems that the human immune system will eventually overcome this virus."

"generally speaking, the mixed immunity against COVID-19 seems to have great potential." immunologist Sean Kroti Shane Crotty also commented in a commentary on science. P>

of course, there are still many questions to be answered. If you were vaccinated first and then infected with COVID-19, would you have the same mixed immunity? If a person has not been naturally infected but has been inoculated with booster needles, can he obtain mixed immunity? In addition, the sample size of the current study is relatively small. Can everyone obtain mixed immunity < p > in addition, many studies are trying to find a pan coronary disease ?
2023-03-22 10:04:43