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Open AccessReview

From SARS to MERS, Thrusting Coronaviruses into the Spotlight

by Zhiqi Song 1,2,3, Yanfeng Xu 1,2,3, Linlin Bao 1,2,3, Ling Zhang 1,2,3, Pin Yu 1,2,3, Yajin Qu 1,2,3, Hua Zhu 1,2,3, Wenjie Zhao 1,2,3, Yunlin Han 1,2,3 and Chuan Qin 1,2,3,*
Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences (CAMS) & Comparative Medicine Centre, Peking Union Medical Collage (PUMC), Beijing 100021, China
NHC Key Laboratory of Human Disease Comparative Medicine, the Institute of Laboratory Animal Sciences, CAMS&PUMC, Beijing 100021, China
Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious, Beijing 100021, China
Author to whom correspondence should be addressed.
Viruses 2019, 11(1), 59;
Received: 16 December 2018 / Revised: 3 January 2019 / Accepted: 9 January 2019 / Published: 14 January 2019
(This article belongs to the Special Issue MERS-CoV)
Coronaviruses (CoVs) have formerly been regarded as relatively harmless respiratory pathogens to humans. However, two outbreaks of severe respiratory tract infection, caused by the severe acute respiratory syndrome coronavirus (SARS-CoV) and the Middle East respiratory syndrome coronavirus (MERS-CoV), as a result of zoonotic CoVs crossing the species barrier, caused high pathogenicity and mortality rates in human populations. This brought CoVs global attention and highlighted the importance of controlling infectious pathogens at international borders. In this review, we focus on our current understanding of the epidemiology, pathogenesis, prevention, and treatment of SARS-CoV and MERS-CoV, as well as provides details on the pivotal structure and function of the spike proteins (S proteins) on the surface of each of these viruses. For building up more suitable animal models, we compare the current animal models recapitulating pathogenesis and summarize the potential role of host receptors contributing to diverse host affinity in various species. We outline the research still needed to fully elucidate the pathogenic mechanism of these viruses, to construct reproducible animal models, and ultimately develop countermeasures to conquer not only SARS-CoV and MERS-CoV, but also these emerging coronaviral diseases. View Full-Text
Keywords: coronaviruses; SARS-CoV; MERS-CoV; spike proteins; animal model; prevention and treatment coronaviruses; SARS-CoV; MERS-CoV; spike proteins; animal model; prevention and treatment
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Song, Z.; Xu, Y.; Bao, L.; Zhang, L.; Yu, P.; Qu, Y.; Zhu, H.; Zhao, W.; Han, Y.; Qin, C. From SARS to MERS, Thrusting Coronaviruses into the Spotlight. Viruses 2019, 11, 59.

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