China Centers for Disease Control: Omikon BA.4 and BA.5 have increased their communication power slightly, and the infection rate and mortality rate will increase

On July 21, the State Council's joint prevention and control mechanism held a press conference to introduce the relevant situation of science and accuracy to prevent the prevention and control of the epidemic. Dong Xiaoping, chief expert of the China Centers for Disease Control and Prevention, introduced the spread and pathogenic force of BA.4 and BA.5 Asian branches of Omikon.

Dong Xiaoping said that the spread of BA.4 and BA.5 Asia branches has increased slightly compared to other Omikon mutant strains, and there are several main performances: 1. Research in some international countries has found that the virus has a high regeneration index of recycling indexes. (R0); Second, the branches of BA.4 and BA.5 in some countries and regions have become popular strains; third, in the past 5 weeks, the number of infections in Europe and North America has increased.

It is reported that the pathogenic force of BA.4 and BA.5 sub -branches is generally similar to other Omikon mutant strains, but the rapid dissemination of the elderly has appeared in severe cases. The use rate has increased. Studies of epidemiological mathematics models show that the infection rate and mortality caused by branches of BA.4 and BA.5 Asia will increase.

Dong Xiaoping emphasized that although the spread of the BA.4 and BA.5 sub -sub -sub -Asia branches has increased, it still belongs to Omikon mutant strains. There is no evidence that the existing NPI (non -drug intervention) measures will fail. In other words, my country's existing prevention and control measures can still be effectively cope.

Red Star reporter Hu Yiwen Wuyang Beijing Beijing report

Editor Guan Li

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