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Original title: How does the mutant strain spread and how should the public respond? Authorized experts interpret the risks and preventive measures of the new mutant strains of coronavirus emerging in the UK.
The Shanghai Municipal Center for Disease Control and Prevention announced on day 1 that the center recently sequenced the genome of a confirmed case of new coronary pneumonia imported from the UK and found that the genetic sequence of the new coronavirus in one case was similar to the gene. of the mutant virus recently reported in the UK. What is the spread of this mutant strain of the new coronavirus that appeared in the UK? How should the public respond? Xu Wenbo, director of the Institute of Viral Diseases at the Chinese Center for Disease Control and Prevention, responded to this.
[Pregunta]Has the spread of the new coronavirus variants discovered in Shanghai in the UK increased among the population?
Xu Wenbo: The results of the genome sequencing of the mutant strain showed that the mutant strain has improved cell infectivity, but its spread among humans is closely related to human social activities, winter weather, and population self-protection measures. .
[Pregunta]Does the mutant strain have higher viral power and severity?
Xu Wenbo: At present, there is no difference in pathogenicity, severity or mortality rate between the mutant strain and the previous mutant strain, and the pathogenicity has not changed significantly, so there is no need to panic.
[Pregunta]Does China’s new coronavirus vaccine have immune protection against the mutant strain?
Xu Wenbo: At present, this variant has not been found to have an impact on the immunological efficacy of the new inactivated coronavirus vaccines marketed in China.
[Pregunta]Can China’s new coronavirus nucleic acid detection reagents detect this mutant?
Xu Wenbo: The conventional nucleic acid detection reagents in China are targeting the dual target genes of the novel coronavirus, namely the N gene and the ORF1ab gene. Mutation of the protein S gene of this new variant in the UK does not affect the sensitivity and specificity of the nucleic acid reagent, Shanghai The newly discovered mutant strains were detected by local nucleic acid reagents from China.
[Pregunta]Are existing measures in China effective to prevent and control the spread of the new coronavirus?
Xu Wenbo: China basically blocked the spread of the new local corona virus in April 2020. For more than 10 clusters of new corona pneumonia caused by imported cases or contaminated cold chain elements later, we have taken effective measures to stop the spread. Measurements. Regular detection of high-risk groups, early diagnosis, early treatment, early isolation from close and infected contacts, as well as the use of masks, frequent hand washing, and maintaining social distancing are effective measures to stop the spread of the new coronavirus in China.
[Pregunta]What other measures should be taken in response to the emergence of mutant strains of the new coronavirus?
Xu Wenbo: People don’t need to panic. They should strictly implement the existing prevention and control measures in China and strengthen personal protection awareness, especially by strengthening the protection of medical personnel and professionals in hospitals with imported cases or designated isolation hotels.
Publisher: Qin Qin
