China is focusing its efforts on adopting the traditional method of developing vaccines to produce vaccination against the emerging coronavirus, despite questions questioned by this method.
Among the 10 vaccines that are likely to appear this year against the emerging coronavirus, China has developed five of them and reached advanced stages. It is also developing a sixth of them in cooperation with a German biotechnology company, and it is the only one of the six that follows the modern method of developing vaccines, according to a report. For the Chinese "Winston" website.
The traditional method, shunned in the West by location, depends on injecting the body with a disabled virus so that the immune system is exposed to a similar picture of the SARS-Cove-2 virus, i.e. close to the infection that a person may have in the future through the Corona virus, which gives him experience and training. Caffeine to resist corona.
In this method, all the enzymes that make the virus able to reproduce within the cell are removed through heat and chemicals, the same method used in developing vaccines against the hepatitis C virus, influenza, and polio.
But this method has been widely avoided out of the 126 vaccines that are being developed worldwide because of doubts about their effectiveness.
One of the reasons many countries and companies do not accept this old technology is that strengthening immunity to be able to fight the Corona virus is for a limited time, and over time the body needs greater doses.
There is another problem in this ancient technology as well, according to scientists, which makes countries show less interest in developing a vaccine through them, which is that it may increase the risk of a negative reaction from broken viruses, which may contain foreign or harmful substances that provoke immunity in reverse.
Stanley Alan Plotkin, who invented the rubella vaccine, advises the World Health Organization and manufacturers of this type of vaccine to make sure their vaccines are safe before they are made available to people, adding that “a lot of safety data will be needed and the efficacy of the vaccine needed.”
It is worth noting that the Oxford vaccine, which is also expected to be ready by next September, uses the same method, and its developers said that it will be made available before its effectiveness is fully confirmed.
Most Western scientists are currently converting to newer technologies by modifying the genes (genetic material) of the virus's DNA, which will be the first of its kind in the world, as there is no vaccine currently present that was used in this method before.
This modern method is being used by Moderna in its mRNA vaccine, which will enter its final stages of clinical trials next month, with the participation of 30 thousand people.
The University of Auckland vaccine scientist Helen Petosis