The emergence, genomic diversity and global spread of SARS-CoV-2
Juan Li,
Shengjie Lai,
George F. Gao and
Weifeng Shi ()
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Juan Li: Shandong First Medical University & Shandong Academy of Medical Sciences
Shengjie Lai: University of Southampton
George F. Gao: China CDC
Weifeng Shi: Shandong First Medical University & Shandong Academy of Medical Sciences
Nature, 2021, vol. 600, issue 7889, 408-418
Abstract:
Abstract Since the first cases of COVID-19 were documented in Wuhan, China in 2019, the world has witnessed a devastating global pandemic, with more than 238 million cases, nearly 5 million fatalities and the daily number of people infected increasing rapidly. Here we describe the currently available data on the emergence of the SARS-CoV-2 virus, the causative agent of COVID-19, outline the early viral spread in Wuhan and its transmission patterns in China and across the rest of the world, and highlight how genomic surveillance, together with other data such as those on human mobility, has helped to trace the spread and genetic variation of the virus and has also comprised a key element for the control of the pandemic. We pay particular attention to characterizing and describing the international spread of the major variants of concern of SARS-CoV-2 that were first identified in late 2020 and demonstrate that virus evolution has entered a new phase. More broadly, we highlight our currently limited understanding of coronavirus diversity in nature, the rapid spread of the virus and its variants in such an increasingly connected world, the reduced protection of vaccines, and the urgent need for coordinated global surveillance using genomic techniques. In summary, we provide important information for the prevention and control of both the ongoing COVID-19 pandemic and any new diseases that will inevitably emerge in the human population in future generations.
Date: 2021
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DOI: 10.1038/s41586-021-04188-6
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