๐ Identification of diverse bat alphacoronaviruses and betacoronaviruses in china provides new insights into the evolution and origin of coronavirus-related diseases
ยฉ 2019 Han, Du, Su, Zhang, Zhu, Zhang, Wu and Jin. Outbreaks of severe acute respiratory syndrome (SARS) in 2002, Middle East respiratory syndrome in 2012 and fatal swine acute diarrhea syndrome in 2017 caused serious infectious diseases in humans and in livestock, resulting in serious public health threats and huge economic losses. All such coronaviruses (Co. Vs) were confirmed to originate from bats. To continuously monitor the epidemic-related Co. Vs in bats, virome analysis was used to classify Co. Vs from 831 bats of 15 species in Yunnan, Guangxi, and Sichuan Provinces between August 2016 and May 2017. We identified 11 CoV strains from 22 individual samples of four bat species. Identification of four alpha-Co. Vs from Scotophilus kuhlii in Guangxi, which was closely related to a previously reported bat CoV and porcine epidemic diarrhea virus (PEDV), revealed a bat-swine lineage under the genus Alphacoronavirus. A recombinant CoV showed that the PEDV probably originated from the CoV of S. kuhlii. Another alpha-CoV, ฮฑ-YN2018, from Rhinolophus affinis in Yunnan, suggested that this alpha-CoV lineage had multiple host origins, and ฮฑ-YN2018 had recombined with Co. Vs of other bat species over time. We identified five SARS-related Co. Vs (SARSr-Co. Vs) in Rhinolophus bats from Sichuan and Yunnan and confirmed that angiotensin-converting enzyme 2 usable SARSr-Co. Vs were continuously circulating in Rhinolophus spp. in Yunnan. The other beta-CoV, strain ฮฒ-GX2018, found in Cynopterus sphinx of Guangxi, represented an independently evolved lineage different from known Co. Vs of Rousettus and Eonycteris bats. The identification of diverse Co. Vs here provides new genetic data for understanding the distribution and source of pathogenic Co. Vs in China.
keywords
๐ severe acute (1373)
๐ closely related (222)
๐ public health (392)
๐ infectious disease (312)
๐ converting enzyme (162)
๐ economic losses (34)
๐ respiratory syndrome (2004)
๐ angiotensin-converting enzyme (112)
๐ acute respiratory (1734)
๐ previously reported (79)
๐ infectious diseases (94)
author
๐ค Han, Yelin
๐ค Du, Jiang
๐ค Su, Haoxiang
๐ค Zhang, Junpeng
๐ค Zhu, Guangjian
๐ค Zhang, Shuyi
๐ค Wu, Zhiqiang
๐ค Jin, Qi
year
โฐ 2019
journal
๐ Frontiers in Microbiology
issn
๐ 1664302X
volume
10
number
AUG
page
citedbycount
0
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