On September 28, the first local infection of the Omickron BF.7 mutant strain in Hohhot was found in Hohhot. According to the People's Daily Health Client, this is the first time that the BF.7 mutant strain has caused a local epidemic in China.

2025/05/0301:14:36 news 1961

Beijing Daily WeChat official account | Reporter Qian Feifan

Another new crown Omickron mutant strain has appeared in my country.

htmlOn September 28, Hohhot, the first local infection of the Omickron BF.7 mutant strain. According to the People's Daily Health Client, is the first time that the BF.7 mutant strain has caused a local epidemic in China. On October 7, Hohhot City's epidemic prevention and control press conference reported that the Omickron BF.7 mutant strain has stronger contagiousness, diffuseness and escape, and is very likely to cause large-scale transmission.

At present, the city's epidemic is showing a trend of multi-point scattering and rapid growth. More than 600 new positive infections were added in a single day, and more than 1,800 positive infections were accumulated. The epidemic prevention and control situation in is very severe and complicated.

WHO recently issued a warning that BF.7 is spreading around the world and "may become mainstream within a few weeks." Where did the Omickron BF.7 variant come from? What are the clinical symptoms? Are existing vaccines and drugs effective?

BF.7 variant strain is the BA.5 subline

or becomes the popular strain this fall and winter

Omickron variant strain BF.7, which is the abbreviation of BA.5 variant. is the subline of the Omickron BA.5 variant strain, and the number of related cases reported in many places in Europe and the United States is increasing.

Recently, The US Centers for Disease Control and Prevention new coronavirus data monitoring found that BF.7 has become the third largest mutant strain in the United States in a short period of time. In Europe, the proportion of Belgium BF.7 reaches 25%, while Germany, France and Denmark account for about 10%.

The epidemic situation of the new coronavirus in the United States. Source: The official website of the US Centers for Disease Control and Prevention
BF.7 variant strain is more contagious than the existing variant strain. can further escape the neutralizing antibodies induced by BA.5 infection. According to a study that has not yet been peer-reviewed, BF.7 is the "most neutralizing resistant variant evaluated to date", which shows "widespread escape" of neutralizing antibodies.
"Patients infected with BA.5 are still at risk of being infected with BF.7." U.S. Omickron vaccine research scholar, U.S. National Institutes of Health research scholar, and Ph.D. in immunology, said that BF.7 may become a mutant strain that is popular this fall and winter.
BF.7 is very likely to cause large-scale transmission
Hohhot epidemic prevention and control severely and complexly

On October 7, Hohhot City Epidemic Prevention and Control Press Conference reported that this round of epidemic strain in Hohhot is an evolutionary branch of the Omickron BF.7 mutant strain. The clinical symptoms of include high fever, persistent cough, physical pain, headache, sore throat, olfactory change and loss of appetite. has the stronger contagiousness, spreadability and escape , which is very likely to cause large-scale transmission, and the difficulty of handling and controlling the epidemic has also increased exponentially.

Hohhot Municipal People's Government Deputy Mayor Xiaofang said that we must fully realize that Omickron strain is more contagious and spread faster than Delta strain . We must enhance risk awareness, strengthen self-protection, and prevent cross-infection.

Experts said that new crown vaccine and drug

are still effective against the BF.7 variant

According to the People's Daily Health Client, WHO new crown vaccine priority review expert and deputy director of Jiangsu Provincial Center for Disease Control and Prevention Zhu Fengcai said that breakthrough infection has always existed, and re-infection with the new crown also exists. At present, the vaccine still has protective effect. Moreover, although BF.7 has enhanced transmission power, is mostly asymptomatic and mild patients.

is not only a vaccine, but the new coronavirus drug in should also be effective against the mutant strain BF.7. Academician of the Chinese Academy of Engineering , and Director of the Institute of Drug Research of the Chinese Academy of Medical Sciences Jiang Jiandong introduced: "The main target of the new coronavirus small molecule drug is viral replicase, and at present, no mutation was found in the Omickron target site, so the impact on small molecule drugs should be small.Azvdin is effective for the current epidemic strains, the real-world clinical data we collect. ”

Beijing Daily (ID: Beijing_Daily) Comprehensive People's Daily Health Client, CCTV News Client, China News Network, Shangguan News [Please indicate the source for reprinting: Beijing Daily WeChat Official Account]

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