At present, the global spread of the delta strain can be said to be the most infectious among all the variant COVID-19. However, as long as COVID-19 is still spreading, new variants of virus will also emerge.
According to foreign media reports,A British scholar analysis released by the British emergency Science Advisory Group (SAGE) ancient Chinese literature search shows that a new variant COVID-19 will be found that will result in the failure of vaccines.
According to experts, although the current vaccine is still effective for the existing variant COVID-19, there is evidence that most vaccines are decreasing against the variation of the virus.
It is worth noting that most of the variants of COVID-19 appear before the vaccine is popularized. With the popularity of vaccines, the advantages of those viruses that can evade vaccine protection will surely increase.
And judging from the current situation,
In this regard, the scientific advisory group also gave treatment opinions and suggested that the government should take measures to reduce the spread of the virus as much as possible, so as to reduce the emergence of mutated viruses that can fight the new crown vaccine.
According to the information released by who, some studies show that,The neutralization effect of the vaccine was reduced several times for the four virus variants of concern.
However, the efficacy of the vaccine for the development of severe, hospitalization and death of infected persons has been higher than that for non severe symptoms. The efficacy of AstraZeneca, Modena, Pfizer and Kexing vaccines for these serious results is estimated to be more than 80%.
It is understood that any microorganism or life body will change and evolve in the process of its occurrence, development and evolution. Of course, viruses are no exception. Experts say there are two main reasons for the mutation of the new crown virus.
First of all, because COVID-19 belongs to the RNA virus, the probability that RNA virus is wrong when copying RNA chain is much higher than that of DNA virus and cell. In this case, the possibility of gene mutation in COVID-19 will happen.
Secondly, in order to better survive in different environments, COVID-19 will produce certain genetic variation.
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