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. 2021 Jan 2;17(1):62-83.
doi: 10.1080/21645515.2020.1797369. Epub 2020 Aug 12.

Product of natural evolution (SARS, MERS, and SARS-CoV-2); deadly diseases, from SARS to SARS-CoV-2

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Product of natural evolution (SARS, MERS, and SARS-CoV-2); deadly diseases, from SARS to SARS-CoV-2

Mohamad Hesam Shahrajabian et al. Hum Vaccin Immunother. .

Abstract

SARS-CoV-2, the virus causing COVID-19, is a single-stranded RNA virus belonging to the order Nidovirales, family Coronaviridae, and subfamily Coronavirinae. SARS-CoV-2 entry to cellsis initiated by the binding of the viral spike protein (S) to its cellular receptor. The roles of S protein in receptor binding and membrane fusion makes it a prominent target for vaccine development. SARS-CoV-2 genome sequence analysis has shown that this virus belongs to the beta-coronavirus genus, which includes Bat SARS-like coronavirus, SARS-CoV and MERS-CoV. A vaccine should induce a balanced immune response to elicit protective immunity. In this review, we compare and contrast these three important CoV diseases and how they inform on vaccine development.

Keywords: MERS; SARS; SARS-CoV-2; coronaviruses; emerging diseases; pneumonia.

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Figure 1.
Figure 1.
Taxonomy of the coronaviridae family

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