Epidemiological Study of Betacoronaviruses in Captive Malayan Pangolins

文献类型： 外文期刊

第一作者： Li, Linmiao

作者： Li, Linmiao;Liu, Ping;Zhou, Jiabin;Huang, Wenzhong;Chen, Jinping;Wang, Xiaohu;Chen, Jing;Hua, Yan;An, Fuyu;Hou, Fanghui

作者机构：

关键词： Betacoronavirus; epidemiology; Malayan pangolin; ACE2; phylogenetic analysis

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：4.235； 五年影响因子：4.926 ）

ISSN： 1664-302X

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： The coronavirus disease 2019 (COVID-19) outbreak has significantly affected international public health safety. It has been reported that the pathogen severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes COVID-19, could originate from bats and utilize the Malayan pangolin (Manis javanica) as an intermediate host. To gain further insights into the coronaviruses carried by pangolins, we investigated the occurrence of Betacoronavirus (beta-CoV) infections in captive Malayan pangolins in the Guangdong province of China. We detected three beta-CoV-positive M. javanica individuals with a positive rate of 6.98% and also detected beta-CoV in two dead pangolins sampled in August 2019. The CoV carried by pangolins is a new beta-CoV, which is genetically related to SARS-CoV-2. Furthermore, the expression of angiotensin-converting enzyme 2 (ACE2) was detected in eight organs of pangolins, with the highest ACE2 mRNA levels in the kidney, suggesting that these organs could be at a risk of beta-CoV infection. These results enable us to better understand the status of beta-CoV carried by Malayan pangolins, while providing a theoretical basis for better pangolin protection and viral control.

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