Recently, multiple subtype variants of Omickron new coronavirus have accelerated worldwide, especially the proportion of infection of the Omickron BF.7 variant has increased rapidly. Currently, it has appeared in many cities and cities in my country. What are the characteristics of the new variant BF.7? What should we do in the face of new mutant strains?
01. What are the characteristics of BF.7? What are the symptoms after infection?
Omickron BF.7 is the abbreviation of BA.5.2.1.7 and is a derivative subtype of the Omickron variant BA.5. Compared with the previous mutant, the BF.7 mutant strain is characterized by strong transmission ability, fast speed and high occultness, which is very likely to cause large-scale diffusion and transmission. The symptoms after infection of the
BF.7 variant strain are mainly manifested as high fever, persistent cough, physical pain, headache, sore throat, altered smell and loss of appetite. These symptoms are similar to those after infection of the early subtype variant of the new crown Omickron.
02. Is the vaccine effective against the Omickron mutant strain?
vaccination with new coronavirus vaccine is an effective prevention method. Compared with the previous variants, the Omickron mutation has a relatively large degree of mutation and is also relatively strong in immune escape. It has a certain impact on the existing vaccines and human neutralizing antibodies induced by previous infections. But immune protection not only relies on neutralizing antibodies, but also is related to cellular immunity and immune memory. Many research results show that the effectiveness of existing vaccines at home and abroad in preventing severe illness and death remains at a high level. my country's vaccine still has a good protective effect on severe illness and death caused by Omickron mutant strain , and strengthening immunity can further reduce the risk of hospitalization, severe illness and death. Although the mutant strain BF.7 has escaped, breakthrough infection has always existed, and the re-infection of , the new coronavirus also exists, it can still protect the body and the vaccine still works.
03. What should we do in the face of new mutant strains?
should actively cooperate with nucleic acid testing in accordance with the requirements of epidemic prevention and control. Omickron strain can spread rapidly in a short period of time and is highly hiding. Only after dynamic and repeated detection in a short period of time can it be effectively detected. Only after multiple nucleic acid tests can targeted control measures be taken in a timely manner to block the spread of the epidemic and prevent and control the spread of the epidemic.
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source: Hohhot Daily
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