This means that our control of COVID-19 can be said to be a little more difficult, and after the mutation, COVID-19 has been very adapted to survive in the human body.
COVID-19 gene mutation to what state?
In the latest report of the Proceedings of the National Academy of Sciences (PNAS), we also see that it has mutated into "three strains" in the world, so it is considered as "rapid mutation". Of course, it is uncertain whether more strains will evolve next. These three strains are only our temporary observation.
And on April 10, Zhong Nanshan, an academician of China Academy of Engineering, also made a statement on this variation, that is, "the transmission power is relatively large, and compared with the flu, the mortality rate is more than 20 times, which deserves attention."
British scientists said that for these three different strains, they also adapt to different people's immune system resistance, and for these virus variants, another problem has been "excavated", that is, the virus variants found in some Americans are the closest to those found in bats.
So this question points to bats again. At the beginning of the virus, many studies pointed the virus at bats, and finally some studies said it might be pangolin. However, there is no accurate answer to explain whether it appears in these animals, so we must wait for new research conclusions.
How were the three strains discovered?
According to Dr. Peter Forster, a geneticist at Cambridge University and the author of the paper published in the Proceedings of the National Academy of Sciences (PNAS), by analyzing "the first batch of 160 complete virus genome sequences found from patients, it is found that the closest variation found in bats mainly comes from" patients in the United States and Australia "rather than patients in Wuhan, China.
They used sample data collected around the world from February 24th, 20 19 to March 4th, 2020. In this study, scientific researchers called three different but closely related variants A, B and C. ..
Among types A, B and C, type A is the closest coronavirus found in bats, that is, the original human virus genome. The virus genome exists in Wuhan, but it is not the main virus type in Wuhan. On the contrary, it may be found in foreigners. According to the scientific report, the researchers found a variant of virus A in Americans living in Wuhan, and also found a large number of virus A in patients from the United States and Australia, so the problem of mutation may be most obvious in them.
The patients in Wuhan are mainly type B, and there are patients all over East Asia. Type C virus is the main European type. In this study, this type of virus was not found in Chinese mainland, but it was found in Singapore, China, Hongkong and South Korea.
Therefore, in view of this situation, the research results show that virus A is most closely related to viruses found in bats and pangolins, and researchers describe it as the root cause of the outbreak. Type B virus comes from type A, separated by two mutations, and then type C is the "daughter" of type B in turn.
Can you find the root of the virus through type A?
Of course, from this study, type A is now a key point, because it is closely related to viruses found in bats and pangolins, which is also a possible source of viruses we have been pointing to, and the latest type A virus is most clearly found in patients from the United States and Australia, so this may change our new understanding of the origin of the virus again.
Foster, a scientific researcher, said that "there are too many rapid mutations in the virus to be traced back to the family tree of coronavirus pneumonia-19", so it is still difficult to find the root cause.
However, according to the study of today's virus mutation population, it is indeed possible for the virus to change. If we can slowly find the root cause from a large number of patients with type A, it will also be helpful for our future vaccine research. Now this paper report directly shows that virus A is the most relevant, and the others are derived separately.
So hurry to see how a large number of patients in the United States and Australia found this situation, and maybe find the real answer.
Generally speaking, the variation problem of this study does point to some foreign groups, but we can only use it as a reference. After all, we don't have an accurate answer yet. As for how the virus finally appeared, we wait for the authoritative scientific conclusion. Now we must make a global effort to control it, so don't blame it.