期刊
JOURNAL OF MEDICAL VIROLOGY
卷 93, 期 3, 页码 1343-1350出版社
WILEY
DOI: 10.1002/jmv.26615
关键词
COVID-19; host immune response; interferon; SARS-CoV-2; virulence factors
类别
Recent studies have identified specific virulence factors of SARS-CoV-2, including a unique cleavage site and special protease, which may give it an edge in infectivity and virulence. These findings help to explain the pathogenesis of COVID-19.
The paucity of knowledge about severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-specific virulence factors has greatly hampered the therapeutic management of patients with coronavirus disease 2019 (COVID-19). Recently, a cluster of studies appeared, which presented empirical evidence for SARS-CoV-2-specific virulence factors that can explain key elements of COVID-19 pathology. These studies unravel multiple structural and nonstructural specifics of SARS-CoV-2, such as a unique FURIN cleavage site, papain-like protease (SCoV2-PLpro), ORF3b and nonstructural proteins, and dynamic conformational changes in the structure of spike protein during host cell fusion, which give it an edge in infectivity and virulence over previous coronaviruses causing pandemics. Investigators provided robust evidence that SARS-CoV-2-specific virulence factors may have an impact on viral infectivity and transmissibility and disease severity as well as the development of immunity against the infection, including response to the vaccines. In this article, we are presenting a summarized account of the newly reported studies.
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