Published by China 丨 Experts: The branches of Omikon variants are not much different from spreading, pathogenic, and immune escapes.

China Net, September 8th (Reporter Peng Yao) Recently, the first Omikon mutant strain in Shenzhen, BF.15, for the first time in Harbin detected the Omikon mutant plant BA.5.2 and BA.5.2.3. Why is the variant of Omikon's mutation so as so fast? How to scientifically look at the mutation of Omikon variants?

The State Council's joint prevention and control mechanism held a press conference on the 8th. Dong Xiaoping, chief expert of the China Centers for Disease Control and Prevention, said that new virus mutation evolution branches are constantly emerging worldwide, such as the BF.15, BA.5.2 of Omikon's mutant strains , BA.5.2.3, etc. First of all, the variation of the RNA virus genome is a very common natural phenomenon. Some mutations will occur during the copy of the human body. These mutations are often random. The new coronal virus belongs to the RNA virus. Its genome consists of nearly 30,000 nucleotides. During each copy, there may be one to several nucleotide mutations. On the other hand, the immune barrier for the formation of large -scale vaccines in the world in a short time and the formation of a large number of natural infections will also promote the acceleration of the new coronal virus mutation.

Dong Xiaoping pointed out that since the emergence of Omikon mutation in November last year, five major evolution branches have been formed, from BA.1 to BA.5. These branches still belong to the range of Omikon mutation. According to observations, each branch does have different branches in the dissemination capacity, pathogenic ability, and immune escape ability, but the overall difference is not much.

"For the variation of the new crown virus, we often pay more attention to the impact of the ability to spread, pathogenic ability, and immune escape ability. At the same time, we also see that not every so -called evolution branch or mutation will significantly affect the above three capabilities above capabilities. Change, so the monitoring of virus mutation in a timely manner is very critical and important for timely adjusting prevention and control strategies and developing drugs and vaccines. "Dong Xiaoping said.

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