With the global pandemic of new coronavirus infection, mutant strains are also emerging, and the Omicron mutant strains BA.5.2, BF.7, XBB, BQ.1, etc. have attracted much attention recently. So, which is the current main circulating variant strain of the new coronavirus in Hangzho

2025/10/2715:02:36 hotcomm 1485

With the global pandemic of new coronavirus infection, mutant strains are also emerging. Omicron mutant strains BA.5.2, BF.7, XBB, BQ.1, etc. have attracted much attention recently.

With the global pandemic of new coronavirus infection, mutant strains are also emerging, and the Omicron mutant strains BA.5.2, BF.7, XBB, BQ.1, etc. have attracted much attention recently. So, which is the current main circulating variant strain of the new coronavirus in Hangzho - DayDayNews

So, which is the main prevalent mutant strain of the new coronavirus in Hangzhou?

The Hangzhou Center for Disease Control and Prevention carried out whole-genome sequencing of the new coronavirus on some immigrants, patients at sentinel hospitals, and specimens of inpatient cases in accordance with national, provincial and municipal surveillance plans to understand the mutation trend of the virus strain in real time and analyze the impact of mutations on virus characteristics, immune escape capabilities, etc.

According to the monitoring of virus strains, the new coronavirus strains detected in local cases in the city in the past week are all Omicron mutant strains BA.5.2 and BF.7, of which BA.5.2 accounts for 54.17% and BF.7 accounts for 45.83%. At the same time, XBB, BQ.1, BQ.1.19 and other Omicron clade virus strains have also been detected among inbound travelers under closed-loop management.

strains BQ.1 and XBB have become major epidemic strains in some European and American countries. Many citizens are worried about the introduction of new mutant strains, which will make domestic epidemic prevention and control more complicated. Experts have some tips for dealing with these concerns. What are the

XBB and BQ.1 mutant strains?

Answer: XBB and BQ.1 are new mutant branches of Omicron and have become dominant strains in some European and American countries, mainly characterized by increased transmissibility and immune evasion capabilities. However, foreign data show that its pathogenicity is not significantly different from previous strains, and the severity and mortality rates have not increased in countries where XBB and BQ.1 are prevalent. Will

XBB and BQ.1 cause to infect again?

answer: XBB and BQ.1 are both sub-branches of BA.5. The immune evasion ability of the above strains has been enhanced, which is different from the BA.5 popular in my country. After a period of time after infection with BA.5, the level of protection decreases. When encountering strains with strong immune evasion ability, the risk of reinfection will increase.

However, reinfection mainly occurs in some people with low immunity. People with normal immune function The risk of reinfection in a short period of time is relatively small, and the symptoms after infection are usually milder than the first time.

How to deal with possible secondary infections caused by XBB and BQ.1?

answer: Although XBB and BQ.1 may cause secondary infection in people with low immunity , the general public does not need to worry too much and should continue to adhere to effective personal protection and social etiquette (one meter of noodles, frequent hand washing, wearing masks, frequent ventilation, etc.), maintain healthy and civilized living habits, and actively get vaccinated.

Reprinted from: Healthy Hangzhou

Source: Hangzhou Daily

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