Background: Since its discovery in December 2019, severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) has infected more than 2 180 000 people worldwide and has …

The COVID-19 pandemic has covered more than 200 countries and regions around the
world since its outbreak in January 2020. To date, the SARS-CoV-2 virus has caused> 1.2 …

Background Within one year after its emergence, more than 108 million people acquired
SARS-CoV-2 and almost 2· 4 million succumbed to COVID-19. New SARS-CoV-2 variants of …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the current
pandemic, resulting in millions of deaths worldwide. Increasingly contagious variants of …

The fatal acute respiratory coronavirus disease 2019 (COVID-19) is caused by severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2). Since COVID-19 was declared a …

The ongoing outbreak of a new coronavirus (2019‐nCoV, or severe acute respiratory
syndrome coronavirus 2 [SARS‐CoV‐2]) has caused an epidemic of the acute respiratory …

The emerging SARS-CoV-2 variants of concern (VOCs) may display enhanced
transmissibility, more severity and/or immune evasion; however, the pathogenesis of these …

Abstract COVID-19, caused by SARS-CoV-2, is the most consequential pandemic of this
century. Since the outbreak in late 2019, animal models have been playing crucial roles in …

It has been known that, the novel coronavirus, 2019-nCoV, which is considered similar to
SARS-CoV, invades human cells via the receptor angiotensin converting enzyme II (ACE2) …

Background Wildtype mice are not susceptible to SARS-CoV-2 infection. Emerging SARS-
CoV-2 variants, including B. 1.1. 7, B. 1.351, P. 1, and P. 3, contain mutations in spike that …