Mainland China first detected
Omickron variant
BA.5.1.7 evolution branch
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Guangdong Shaoguan Municipal Government reported on the 9th:
At present, there have been many confirmed cases of imported new coronavirus pneumonia from multiple sources and multiple chains in the city, causing continuous positive cases in the local area. Among them, the evolutionary branch of the Omickron variant BA.5.1.7 (hereinafter referred to as "BA.5.1.7"), which affected the city, was the first time it was detected in mainland China.
Shaoguan Municipal Government introduced
This round of epidemic mainly
is transmitted by , two transmission chains, ,
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The Shaoguan Municipal Government introduced that due to the extremely contagious nature of BA.5.1.7, html, a dinner on October 1, tied many positive cases in the city to the same transmission chain .
Li Shujian, deputy director of Shaoguan Municipal Center for Disease Control and Prevention, said that after a rigorous epidemiological investigation of , a case returned to Shaoxing from Hohhot on September 30, and did not strictly implement relevant epidemic prevention regulations. He did not wear a mask and walked to public places and spit anywhere. infected several passers-by , causing the mutant strain BF.7 evolutionary branch to cause a major risk of transmission in the social area of in Shaoguan City. The behavior is very bad and the consequences are very serious.
has filed a case for investigation on this case .
Li Shujian said that although the two mutant strains that currently affect Shaoguan have strong contagiousness, transmission and immune escape ability of , they all need to achieve transmission such as close contact and living in the same space.
(online picture)
Recently, the
multiple subtype variants of the Omickron coronavirus
are accelerated in the global
, which includes:
BA.2.75, BF.7, BA.4.6 and other emerging variants have attracted the attention of WHO . These variants may have the stronger immune escape ability of .
WHO issued a warning
BF.7 is spreading globally
"May become mainstream within a few weeks"
September 28
Hohhot City has the first case of
BF.7Local New crown infected person
and caused the local epidemic
So what are the characteristics of
Hotel?
What should we do when facing the new mutant strain
?
Disease Control Expert Answer
Question
BF.7 is the popularity of
BF.7 in various places?
BF.7 is the abbreviation of BA.5.2.1.7. It is considered to be the third generation subtype derived from the Omickron BA.5 variant strain, with the BA.2.75 variant strain intersected.
US Centers for Disease Control and Prevention COVID-19 data monitoring found that since the start of monitoring, the percentage of strains of BF.7 has increased to 4.6% in the short term, becoming the third largest mutant strain in the current proportion of COVID-19 detected in the United States. In addition, in Europe, BF.7 accounts for 25% of the infected Belgium ; Germany, France and Denmark account for about 10%.
Question What are the symptoms after infection with
BF.7? The symptoms of
BF.7 variant strain after infection include high fever, persistent cough, physical pain, headache, sore throat, altered smell and loss of appetite. These symptoms are similar to those of the early subtype variant of the new crown Omickron Co., Ltd. .
Question Is the
vaccine effective against the Omickron mutation?
vaccination with new coronavirus vaccine is an effective prevention method. Compared with the previous variants, the Omickron variant has a relatively large degree of mutation and a stronger immune escape ability, which 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 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 the Omickron variant strain , and strengthening immunity can further reduce the risk of hospitalization, severe illness and death.Although the mutant strain BF.7 has certain escapes , the breakthrough infection has always existed, and the re-infection of the new coronavirus also exists, it can still protect the body. The vaccine still works .
Question
What should we do when facing the new mutant strain?
should follow the epidemic prevention and control requirements, should actively cooperate with nucleic acid detection . Omickron strain can spread rapidly in a short 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.
Secondly, should actively cooperate with all prevention and control measures at this stage and maintain good personal hygiene habits, including wearing masks, maintaining social distance, washing hands frequently, ventilation and other protective measures. Although the Omickron mutant strain BF.7 is more contagious than the existing mutant strain, wearing a mask is still a very effective personal protection measure. Autumn and winter are not only the new coronary pneumonia, but also the high incidence of various respiratory infectious diseases. Scientific wearing of masks can effectively reduce the risk of transmission, prevent the spread of the epidemic, and reduce cross-infection.
In addition, other personal protection measures must be taken, and people should be adhered to frequent hand washing, ventilation, separate meals, using public chopsticks, and maintaining a social distance of "1 meter line".
-END-
Edited by this article｜Xiaomener
Source｜Shaoguan Release, China News Network, Hubei Disease Control
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