Zhejiang experts in new poison strains: existing protection measures can be effectively cope with

Zhejiang News Client reporter Zheng Wen correspondent Jiang Yan

"BA.5.2" became a hot word. On the evening of the 4th, the press conference on the prevention and control of the new crown pneumonia epidemic in Jinhua City revealed that the Yiwu epidemic virus was Omikon BA.5.2 mutant strain, which was the first encounter in our province and caused widespread attention.

What are the characteristics of new strains? How can I effectively prevent it? On the 5th, the reporter interviewed Dr. Sun Yi, the head of the Virus Inspection Division of the Zhejiang Provincial Disease Control and Prevention Center.

"Compared with the primitive plant, there are more than 70 mutant points of Omikon BA.5.2 mutant strains. Its virus immunization escape ability is stronger than the predecessor. Like Rongye strains, it will lead to a large number of asymptomatic infections. The difficulty of finding the chain of spreading chains will also need to be accelerated. "Sun Yi told reporters that the BA.5.2 branch ratio ratio of Omik Rong, the popular Omiko Rong in Zhejiang this time The previous generation of strains have stronger infectious, faster propagation speed, and higher effective regeneration (RT value), that is, during the infection period, the average number of people can be infected by a patient.

The new coronal virus is the RNA virus like the flu virus. When the crowd has a certain group immunity to a certain strain, the virus will be replicated and spread in the form of mutation in the form of mutation to partially break through the existing immune barrier.

The reporter learned that since November 2021, the mutant strain of the new crown virus Omikon has become the main epidemic strain in the global new crown pneumonia, which has caused a popular peak of the world from December 2021 to March 2022. Since March of this year, the major virus strains in my country are Omikon BA.2 Asian branches. In May, Omikon BA.4 and BA.5 were detected for the first time in the input case.

"Although the dissemination capacity of mutant strains has increased, it still belongs to Omikon's evolutionary branch. The existing protection measures can be effectively cope." Sun Yi said that Omikon BA.5.2 mutant strains have been found in many places in my country. Everyone does not have to panic. The existing vaccine and prevention and control measures are still very effective.

Judging from the experience of various localities, with the mutation of the virus, the infection of Omikon's mutant strain has increased, but its toxicity is relatively weakened, and the clinical symptoms are relatively light; the illness and control team quickly screens, quickly discovers, you can discover and find it as soon as possible and find it as soon as possible. Determine possible infected people. The more meticulous the investigation and control work, and the more timely control of the disease, which effectively prevents the spread of the epidemic.

Sun Yi reminded that the propagation method of BA.5.2, the new poison strain of Omikon, is the main dissemination of droplets. Pay attention to the dynamics of the epidemic in time, arrange travel reasonably, try not to be closed and the place where people gather, and reduce the risk of travel infection. In addition, vaccination is an effective means to prevent health protection. If a new crown vaccine has not been vaccinated, vaccination points should be vaccinated near the residential place as soon as possible.

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